Understand Negative numbers, one step at a time. Step by steps for fractions, factoring, and prime factorization. Enter your math expression. x2 − 2x + 1 = 3x − 5. Get Chegg Math Solver. $9.95 per month (cancel anytime). See details.To add or subtract expressions, expand them to make their denominators the same. Least common multiple of x-1 and x+1 is \left(x-1\right)\left(x+1\right).The fraction calculator is easy to use. First select if you want to use the default or mixed fraction calculator. Fill in two fractions and choose if you want to add, subtract, multiply or divide and click the "Calculate" button. The result is a (mixed) fraction reduced to it’s simplest form. Also a table with the result fraction converted in ...Free Pre-Algebra, Algebra, Trigonometry, Calculus, Geometry, Statistics and Chemistry calculators step-by-stepf of x is equal to 7x minus 5. g of x is equal to x to the third power plus 4x. And then they ask us to find f times g of x So the first thing to realize is that this notation f times g of x is just referring to a function that is a product of f of x and g of x. Just like for the matrix-vector product, the product AB A B between matrices A A and B B is defined only if the number of columns in A A equals the number of rows in B B. In math terms, we say we can multiply an m × n m × n matrix A A by an n × p n × p matrix B B. (If p p happened to be 1, then B B would be an n × 1 n × 1 column vector ...Free math lessons and math homework help from basic math to algebra, geometry and beyond. Students, teachers, parents, and everyone can find solutions to their math problems instantly. Suppose that Am×nx = 0 has a nontrivial solution x. Prove that, for some row vector z, the equation yA = z has no solution. Assume for contradiction that yA =z has a solution y for all vectors z. Now, multiply on the right by x. This gives, yAx= zx⇒ y(0)= zx⇒ zx = 0. Then, since x is not the zero ...Remember, 2x times 4x is the same thing as-- you can rearrange the order of multiplication. This is the same thing as 2 times 4, times x times x. Which is the same thing as 8 times x squared. Remember, x to the 1, times x to the 1, add the exponents. I mean, you know x times x is x squared. So this first term is going to be 8x squared.Solve your math problems using our free math solver with step-by-step solutions. Our math solver supports basic math, pre-algebra, algebra, trigonometry, calculus and more. The fraction calculator is easy to use. First select if you want to use the default or mixed fraction calculator. Fill in two fractions and choose if you want to add, subtract, multiply or divide and click the "Calculate" button. The result is a (mixed) fraction reduced to it’s simplest form. Also a table with the result fraction converted in ... Nov 12, 2018 · Add, subtract, multiply and divide decimal numbers with this calculator. You can use: Positive or negative decimals. For negative numbers insert a leading negative or minus sign before your number, like this: -45 or -356.5. Integers, decimals or scientific notation. For scientific notation use "e" notation like this: -3.5e8 or 4.7E-9. The pH scale is logarithmic, meaning that an increase or decrease of an integer value changes the concentration by a tenfold. For example, a pH of 3 is ten times more acidic than a pH of 4. Likewise, a pH of 3 is one hundred times more acidic than a pH of 5. Similarly a pH of 11 is ten times more basic than a pH of 10.Free Square Roots calculator - Find square roots of any number step-by-stepSolve your math problems using our free math solver with step-by-step solutions. Our math solver supports basic math, pre-algebra, algebra, trigonometry, calculus and more. Compute answers using Wolfram's breakthrough technology & knowledgebase, relied on by millions of students & professionals. For math, science, nutrition, history ...Solve your math problems using our free math solver with step-by-step solutions. Our math solver supports basic math, pre-algebra, algebra, trigonometry, calculus and more.Solve for x sin (x)=1. sin(x) = 1 sin ( x) = 1. Take the inverse sine of both sides of the equation to extract x x from inside the sine. x = arcsin(1) x = arcsin ( 1) Simplify the right side. Tap for more steps... x = π 2 x = π 2. The sine function is positive in the first and second quadrants. To find the second solution, subtract the ...By definition, (x,x)= {{x},{x,x}}. This last set is equal to {{x},{x}} ... Equivalence Relation, and finding the subset that defines the relation. Mostly right, which means wrong. The Transitive proof is correct. The symmetric proof is correct, but cluttered. You just have to say that: as multiplication of reals is commutative, then xy >0 ...Simplify x^ (1/2)*x^ (1/2) x1 2 ⋅ x1 2 x 1 2 ⋅ x 1 2. Multiply x1 2 x 1 2 by x1 2 x 1 2 by adding the exponents. Tap for more steps... x1 x 1. Simplify x1 x 1. Apr 12, 2019 · Long Multiplication Example: Multiply 234 by 56. Long Multiplication Steps: Stack the numbers with the larger number on top. Align the numbers by place value columns. Multiply the ones digit in the bottom number by each digit in the top number. 6 × 4 = 24. Put the 4 in Ones place. Carry the 2 to Tens place. Calculus. Solve for x 1/x=0. 1 x = 0 1 x = 0. Set the numerator equal to zero. 1 = 0 1 = 0. Since 1 ≠ 0 1 ≠ 0, there are no solutions.Solve your math problems using our free math solver with step-by-step solutions. Our math solver supports basic math, pre-algebra, algebra, trigonometry, calculus and more.While "10% more" means 1.1x the original, making "300% more" logically mean 4x the original, this doesn't happen with "X times more." You would never say "a tenth times more" or "half times more" or even "one time (s) more." And "one and a half times more" should be 1.5x the original. On the other hand, "three times as many more" would indeed ...Nov 12, 2018 · Add, subtract, multiply and divide decimal numbers with this calculator. You can use: Positive or negative decimals. For negative numbers insert a leading negative or minus sign before your number, like this: -45 or -356.5. Integers, decimals or scientific notation. For scientific notation use "e" notation like this: -3.5e8 or 4.7E-9. Simplify x^ (1/2)*x^ (1/2) x1 2 ⋅ x1 2 x 1 2 ⋅ x 1 2. Multiply x1 2 x 1 2 by x1 2 x 1 2 by adding the exponents. Tap for more steps... x1 x 1. Simplify x1 x 1.(x) x 1 =x. Why is a number to the first power equal the same number? The following is not a proof or a reason, but it's a demonstrationthat might be intuitively satisfying:'X' mentioned 4 times: X times X times X times X = X to the fourth power'X' mentioned 3 times: X times X times X = X to the third power'X' mentioned 2 times: X times X = X to the second power'X' mentioned 1 time: X = X to ...Long Multiplication Example: Multiply 234 by 56. Long Multiplication Steps: Stack the numbers with the larger number on top. Align the numbers by place value columns. Multiply the ones digit in the bottom number by each digit in the top number. 6 × 4 = 24. Put the 4 in Ones place. Carry the 2 to Tens place.You want to have your decimal q such that q \times (1.15 \times x ) = 1.15 \times x - x = 0.15 \times x so q \times 1.15 \times x = 0.15 \times x for all x Finally, you have q = \frac{0.15}{1.15} \simeq 0.1304347826 ...Just like for the matrix-vector product, the product AB A B between matrices A A and B B is defined only if the number of columns in A A equals the number of rows in B B. In math terms, we say we can multiply an m × n m × n matrix A A by an n × p n × p matrix B B. (If p p happened to be 1, then B B would be an n × 1 n × 1 column vector ... May 25, 2020 · Which expression is equivalent to log Subscript 12 Baseline StartFraction x Superscript 4 Baseline StartRoot x cubed minus 2 EndRoot Over (x + 1) Superscript 5 Baseline EndFraction? 4 log Subscript 12 Baseline x + one-half log Subscript 12 Baseline (x cubed minus 2) minus 5 log Subscript 12 Baseline (x times 1) Here's the rule: When you multiply two terms with the same base, the exponents add. So: x*x 1/2 = x 1+1/2 = x3/2. Upvote • 0 Downvote.Free Square Roots calculator - Find square roots of any number step-by-step Symbolab is the best step by step calculator for a wide range of math problems, from basic arithmetic to advanced calculus and linear algebra. It shows you the solution, graph, detailed steps and explanations for each problem. Online math solver with free step by step solutions to algebra, calculus, and other math problems. Get help on the web or with our math app. Step 1: Enter the radical expression below for which you want to calculate the square root. The square root calculator finds the square root of the given radical expression. If a given number is a perfect square, you will get a final answer in exact form. If a given number is not a perfect square, you will get a final answer in exact form and ..., the numerator is 3, and the denominator is 8. A more illustrative example could involve a pie with 8 slices. 1 of those 8 slices would constitute the numerator of a fraction, while the total of 8 slices that comprises the whole pie would be the denominator. If a person were to eat 3 slices, the remaining fraction of the pie would therefore beOnline math solver with free step by step solutions to algebra, calculus, and other math problems. Get help on the web or with our math app. What is x times 1? Updated: 4/28/2022 Wiki User ∙ 11y ago Study now See answers (13) Best Answer Copy x times 1 is x. Anything times 1 is still that same anything. Wiki User ∙ 11y ago...Sounds tough, but once you have mastered the 10× table, it is just a few steps away. Firstly, 11× is mostly easy: from 11×2 to 11×9 you just put the two digits together. 11×2=22, 11×3=33, ..., 11×9=99. And of course 2×, 5× and 10× just follow their simple rules you know already. So it just leaves these to remember: Compute answers using Wolfram's breakthrough technology & knowledgebase, relied on by millions of students & professionals. For math, science, nutrition, history ...Solved X Times Examples: 12x X 2x = ? 12x X 2x = 24x 2. 4x X 2x = ? 4x X 2x =8 2. 2x X 6x = ? 2x X 6x = 12x 2. 3x X 3x = ? 3x X 3x = 9x 2. 9x X 27x = ? 9x X 27x = 243 ...Free Square Roots calculator - Find square roots of any number step-by-stepIn order to show that T is a function, you need to prove that for each pair of subsets A and B of X there is one and only one subset U of X\times X such that T(A,B)=U, that is, ((A,B),U) \in T ... View solution steps Evaluate x Graph Quiz Polynomial x×1 Similar Problems from Web Search What does X × {0} and Y × {1} mean in this proof? https://math.stackexchange.com/q/2332997 A×B = {(a,b):a ∈ A,b ∈ B}. This is called the Cartesian product. For example {a,b,c}×{0,1} ={(a,0),(b,0),(c,0),(a,1),(b,1),(c,1)} In the context of the proof, ...In order to show that T is a function, you need to prove that for each pair of subsets A and B of X there is one and only one subset U of X\times X such that T(A,B)=U, that is, ((A,B),U) \in T ... What is the ''right" norm for the Banach space tensor product in this situation?First we prove an intermediate result. Subtract 0 × 0 0 × 0 from each side to get 0 = 0 × 0 0 = 0 × 0. Now we are ready for the final kill. = 1 × 1 + 1 × (−1) + (−1) × 1 + (−1) × (−1) = 1 × 1 + 1 × ( − 1) + ( − 1) × 1 + ( − 1) × ( − 1) Add 1 1 to each side to get 1 = (−1) × (−1) 1 = ( − 1) × ( − 1). 25.6k 4 ...Symbolab is the best step by step calculator for a wide range of math problems, from basic arithmetic to advanced calculus and linear algebra. It shows you the solution, graph, detailed steps and explanations for each problem.For Question 1, observe that Z = (B×X)∩V. (Just notice that x ∈ V b means (b,x)∈ V .) Question 2: consider the map f:(B×C)×Pn → (B ×Pn)×(C ×Pn), (b,c,x) ↦((b,x),(c,x)). ... The problem is that in order to remedy the problems and paradoxes of naive set theory, the mathematicians around the turn of the century realised that you ...In order to show that T is a function, you need to prove that for each pair of subsets A and B of X there is one and only one subset U of X\times X such that T(A,B)=U, that is, ((A,B),U) \in T ... What is the ''right" norm for the Banach space tensor product in this situation?Free Algebraic Properties Calculator - Simplify radicals, exponents, logarithms, absolute values and complex numbers step-by-step Simplify 1/ ( square root of x) 1 √x 1 x. Multiply 1 √x 1 x by √x √x x x. 1 √x ⋅ √x √x 1 x ⋅ x x. Combine and simplify the denominator.Free Algebraic Properties Calculator - Simplify radicals, exponents, logarithms, absolute values and complex numbers step-by-step An exponent is the number of times to multiply a number by itself. Write an exponent as a raised number. In the number 2 4 (2 to the exponent 4, or 2 to the power of 4), the ‘4’ is the exponent. The ‘2’ is the number to multiply by itself 4 times over. In this case 2 x 2 x 2 x 2 = 16.We could have factored this numerator as x plus 4 times x plus 1. 4 times 1 is 4. 4 plus 1 is 5, all of that over x plus 4. That cancels out and you're left just with x plus 1. Either way would have worked, but the algebraic long division will always work, even if you can't cancel out factors like that, even if you did have a remainder.Algebra. Simplify 1/2x^ (-1/2) 1 2 x−1 2 1 2 x - 1 2. Rewrite the expression using the negative exponent rule b−n = 1 bn b - n = 1 b n. 1 2 ⋅ 1 x1 2 1 2 ⋅ 1 x 1 2. Combine. 1⋅1 2x1 2 1 ⋅ 1 2 x 1 2. Multiply 1 1 by 1 1. 1 2x1 2 1 2 x 1 2. Sounds tough, but once you have mastered the 10× table, it is just a few steps away. Firstly, 11× is mostly easy: from 11×2 to 11×9 you just put the two digits together. 11×2=22, 11×3=33, ..., 11×9=99. And of course 2×, 5× and 10× just follow their simple rules you know already. So it just leaves these to remember: f of x is equal to 7x minus 5. g of x is equal to x to the third power plus 4x. And then they ask us to find f times g of x So the first thing to realize is that this notation f times g of x is just referring to a function that is a product of f of x and g of x. Max has a 5 \times 6 card and he enlarged it to be 7.5 \times 9. What was the scale factor? ... First lets forget about the decimal places and multiply 405 x 11. that ...To add or subtract expressions, expand them to make their denominators the same. Least common multiple of x-1 and x+1 is \left(x-1\right)\left(x+1\right). Step 1: Enter the radical expression below for which you want to calculate the square root. The square root calculator finds the square root of the given radical expression. If a given number is a perfect square, you will get a final answer in exact form. If a given number is not a perfect square, you will get a final answer in exact form and ... Step 1: Enter the radical expression below for which you want to calculate the square root. The square root calculator finds the square root of the given radical expression. If a given number is a perfect square, you will get a final answer in exact form. If a given number is not a perfect square, you will get a final answer in exact form and ... Solve your math problems using our free math solver with step-by-step solutions. Our math solver supports basic math, pre-algebra, algebra, trigonometry, calculus and more. By definition, (x,x)= {{x},{x,x}}. This last set is equal to {{x},{x}} ... Equivalence Relation, and finding the subset that defines the relation. Mostly right, which means wrong. The Transitive proof is correct. The symmetric proof is correct, but cluttered. You just have to say that: as multiplication of reals is commutative, then xy >0 ...Online math solver with free step by step solutions to algebra, calculus, and other math problems. Get help on the web or with our math app. While "10% more" means 1.1x the original, making "300% more" logically mean 4x the original, this doesn't happen with "X times more." You would never say "a tenth times more" or "half times more" or even "one time (s) more." And "one and a half times more" should be 1.5x the original. On the other hand, "three times as many more" would indeed ...Nov 12, 2018 · Add, subtract, multiply and divide decimal numbers with this calculator. You can use: Positive or negative decimals. For negative numbers insert a leading negative or minus sign before your number, like this: -45 or -356.5. Integers, decimals or scientific notation. For scientific notation use "e" notation like this: -3.5e8 or 4.7E-9. , the numerator is 3, and the denominator is 8. A more illustrative example could involve a pie with 8 slices. 1 of those 8 slices would constitute the numerator of a fraction, while the total of 8 slices that comprises the whole pie would be the denominator. If a person were to eat 3 slices, the remaining fraction of the pie would therefore be1.225 × 10 5 + 3.655 × 10 3 = 1.26155 x 10 5. E Notation. E notation is also known as exponential notation. E notation is the same as scientific notation where a decimal number between 1 and 10 is multiplied by 10 raised to some power. In E notation the "times 10 raised to a power" is replaced with the letter e in either uppercase or lowercase.For Question 1, observe that Z = (B×X)∩V. (Just notice that x ∈ V b means (b,x)∈ V .) Question 2: consider the map f:(B×C)×Pn → (B ×Pn)×(C ×Pn), (b,c,x) ↦((b,x),(c,x)). ... The problem is that in order to remedy the problems and paradoxes of naive set theory, the mathematicians around the turn of the century realised that you ...f of x is equal to 7x minus 5. g of x is equal to x to the third power plus 4x. And then they ask us to find f times g of x So the first thing to realize is that this notation f times g of x is just referring to a function that is a product of f of x and g of x. In order to show that T is a function, you need to prove that for each pair of subsets A and B of X there is one and only one subset U of X\times X such that T(A,B)=U, that is, ((A,B),U) \in T ... The background is Munkres's topology says: Every closed interval in $\\mathbb{R}$ is compact. and A subspace A of $\\mathbb{R}^n$ is compact if and only if it is closed and is bounded in the square (orAlgebra. Simplify 1/2x^ (-1/2) 1 2 x−1 2 1 2 x - 1 2. Rewrite the expression using the negative exponent rule b−n = 1 bn b - n = 1 b n. 1 2 ⋅ 1 x1 2 1 2 ⋅ 1 x 1 2. Combine. 1⋅1 2x1 2 1 ⋅ 1 2 x 1 2. Multiply 1 1 by 1 1. 1 2x1 2 1 2 x 1 2.Like, what does “multiply ‘x’ by itself -1 times” mean? The expression x n only means “multiply x by itself n times” when n is a positive integer. When the exponent is 0, a negative integer, an arbitrary rational number, an arbitrary real number, or an arbitrary complex number you need a different definition for x n to make sense ...Dec 18, 2022 · (x) x 1 =x. Why is a number to the first power equal the same number? The following is not a proof or a reason, but it's a demonstrationthat might be intuitively satisfying:'X' mentioned 4 times: X times X times X times X = X to the fourth power'X' mentioned 3 times: X times X times X = X to the third power'X' mentioned 2 times: X times X = X to the second power'X' mentioned 1 time: X = X to ... Sep 2, 2012 · The numpy.repeat has been mentioned, and that's clearly the equivalent to what you want. But for completenes' sake, there's also repeat from the itertools standard library. . However, this is intended for iterables in general, so it doesn't allow repetions by index (because iterables in general do not have an index defin Simplify ( square root of x-1)( square root of x+1) Step 1. Expand using the FOIL Method. Tap for more steps... Step 1.1. Apply the distributive property. Step 1.2.View solution steps Evaluate x Graph Quiz Polynomial x×1 Similar Problems from Web Search What does X × {0} and Y × {1} mean in this proof? https://math.stackexchange.com/q/2332997 A×B = {(a,b):a ∈ A,b ∈ B}. This is called the Cartesian product. For example {a,b,c}×{0,1} ={(a,0),(b,0),(c,0),(a,1),(b,1),(c,1)} In the context of the proof, ...Like, what does “multiply ‘x’ by itself -1 times” mean? The expression x n only means “multiply x by itself n times” when n is a positive integer. When the exponent is 0, a negative integer, an arbitrary rational number, an arbitrary real number, or an arbitrary complex number you need a different definition for x n to make sense ...To write 1 y 1 y as a fraction with a common denominator, multiply by x x x x. 1 x ⋅ y y + 1 y ⋅ x x 1 x ⋅ y y + 1 y ⋅ x x. Write each expression with a common denominator of xy x y, by multiplying each by an appropriate factor of 1 1. Tap for more steps... y xy + x xy y x y + x x y. Combine the numerators over the common denominator.Algebra. Multiply (x-5) (x-1) (x − 5) (x − 1) ( x - 5) ( x - 1) Expand (x−5)(x− 1) ( x - 5) ( x - 1) using the FOIL Method. Tap for more steps... x⋅x+x⋅ −1−5x−5⋅−1 x ⋅ x + x ⋅ - 1 - 5 x - 5 ⋅ - 1. Simplify and combine like terms. Tap for more steps... x2 − 6x+5 x 2 - 6 x + 5.x squared is a notation that is used to represent the expression \(x\times x\). i.e., x squared equals x multiplied by itself.Apr 29, 2023 · An exponent is a way to represent how many times a number, known as the base, is multiplied by itself. It is represented as a small number in the upper right hand corner of the base. For example: x² means you multiply x by itself two times, which is x × x. Likewise, 4² = 4 × 4, etc. If the exponent is 3, in the example 5³, then the result ... What is x times 1? Updated: 4/28/2022 Wiki User ∙ 11y ago Study now See answers (13) Best Answer Copy x times 1 is x. Anything times 1 is still that same anything. Wiki User ∙ 11y ago...Long Multiplication Example: Multiply 234 by 56. Long Multiplication Steps: Stack the numbers with the larger number on top. Align the numbers by place value columns. Multiply the ones digit in the bottom number by each digit in the top number. 6 × 4 = 24. Put the 4 in Ones place. Carry the 2 to Tens place.Stack Exchange network consists of 183 Q&A communities including Stack Overflow, the largest, most trusted online community for developers to learn, share their knowledge, and build their careers. Defintion of proper homotopy https://math.stackexchange.com/questions/2532344/defintion-of-proper-homotopy Let X =R. The homotopy will be from the identity map to itself, so H (0,x)= H (1,x)= x for all x. For each integer n ≥ 1, during the time period [1/(n+1),1/n], the point n∈ X is ...Algebra. Simplify 1/2x^ (-1/2) 1 2 x−1 2 1 2 x - 1 2. Rewrite the expression using the negative exponent rule b−n = 1 bn b - n = 1 b n. 1 2 ⋅ 1 x1 2 1 2 ⋅ 1 x 1 2. Combine. 1⋅1 2x1 2 1 ⋅ 1 2 x 1 2. Multiply 1 1 by 1 1. 1 2x1 2 1 2 x 1 2.
Solve for x sin (x)=1. sin(x) = 1 sin ( x) = 1. Take the inverse sine of both sides of the equation to extract x x from inside the sine. x = arcsin(1) x = arcsin ( 1) Simplify the right side. Tap for more steps... x = π 2 x = π 2. The sine function is positive in the first and second quadrants. To find the second solution, subtract the .... Dsad 504
Get the free "Solve for X Calculator" widget for your website, blog, Wordpress, Blogger, or iGoogle. Find more Mathematics widgets in Wolfram|Alpha.For Question 1, observe that Z = (B×X)∩V. (Just notice that x ∈ V b means (b,x)∈ V .) Question 2: consider the map f:(B×C)×Pn → (B ×Pn)×(C ×Pn), (b,c,x) ↦((b,x),(c,x)). ... The problem is that in order to remedy the problems and paradoxes of naive set theory, the mathematicians around the turn of the century realised that you ...By ‘ The law of exponents ‘ , a^n × a^m = a^n+m. Therefore , e^x × e^x = e^x+x = e^2x . Find out how many invertible and diagonal solutions X 2 − 2X = 0 has when X ∈ R3×3. If X is invertible, then multiplying each side of X 2−2X = 0 by the inverse of X gives us that X −2I = 0 and so X = 2I. For the case where X is diagonal, let X ... See the entire simplification process below: Explanation: The rules for order of operation say to execute the multiplication in this problem first: 2x−9×x+8 →2x−9x+8 ... Equivalent metrics gives the same topology, so we can show that the metrics are equivalent, I'll replace d(x1,y1)= x and d(x2,y2) = y and show that they are equivalent.Compute answers using Wolfram's breakthrough technology & knowledgebase, relied on by millions of students & professionals. For math, science, nutrition, history ...To add or subtract expressions, expand them to make their denominators the same. Least common multiple of x-1 and x+1 is \left(x-1\right)\left(x+1\right).First we prove an intermediate result. Subtract 0 × 0 0 × 0 from each side to get 0 = 0 × 0 0 = 0 × 0. Now we are ready for the final kill. = 1 × 1 + 1 × (−1) + (−1) × 1 + (−1) × (−1) = 1 × 1 + 1 × ( − 1) + ( − 1) × 1 + ( − 1) × ( − 1) Add 1 1 to each side to get 1 = (−1) × (−1) 1 = ( − 1) × ( − 1). 25.6k 4 ...Sounds tough, but once you have mastered the 10× table, it is just a few steps away. Firstly, 11× is mostly easy: from 11×2 to 11×9 you just put the two digits together. 11×2=22, 11×3=33, ..., 11×9=99. And of course 2×, 5× and 10× just follow their simple rules you know already. So it just leaves these to remember: 1. negative of (4 squared) is -4² = -(4)² = -(4 × 4) = -16. 2. (negative 4) squared is (-4)² = (-4 × -4) = 16. Use parentheses to clearly indicate which calculation you really want to happen. Squared. A number n squared is written as n² and n² = n × n. If n is an integer then n² is a perfect square.For Question 1, observe that Z = (B×X)∩V. (Just notice that x ∈ V b means (b,x)∈ V .) Question 2: consider the map f:(B×C)×Pn → (B ×Pn)×(C ×Pn), (b,c,x) ↦((b,x),(c,x)). ... The problem is that in order to remedy the problems and paradoxes of naive set theory, the mathematicians around the turn of the century realised that you ...Which says the absolute value of x equals: x when x is greater than zero; 0 when x equals 0; −x when x is less than zero (this "flips" the number back to positive) So when a number is positive or zero we leave it alone, when it is negative we change it to positive using −x., the numerator is 3, and the denominator is 8. A more illustrative example could involve a pie with 8 slices. 1 of those 8 slices would constitute the numerator of a fraction, while the total of 8 slices that comprises the whole pie would be the denominator. If a person were to eat 3 slices, the remaining fraction of the pie would therefore beSuppose that Am×nx = 0 has a nontrivial solution x. Prove that, for some row vector z, the equation yA = z has no solution. Assume for contradiction that yA =z has a solution y for all vectors z. Now, multiply on the right by x. This gives, yAx= zx⇒ y(0)= zx⇒ zx = 0. Then, since x is not the zero ...First we prove an intermediate result. Subtract 0 × 0 0 × 0 from each side to get 0 = 0 × 0 0 = 0 × 0. Now we are ready for the final kill. = 1 × 1 + 1 × (−1) + (−1) × 1 + (−1) × (−1) = 1 × 1 + 1 × ( − 1) + ( − 1) × 1 + ( − 1) × ( − 1) Add 1 1 to each side to get 1 = (−1) × (−1) 1 = ( − 1) × ( − 1). 25.6k 4 ...Free Pre-Algebra, Algebra, Trigonometry, Calculus, Geometry, Statistics and Chemistry calculators step-by-stepYou want to have your decimal q such that q \times (1.15 \times x ) = 1.15 \times x - x = 0.15 \times x so q \times 1.15 \times x = 0.15 \times x for all x Finally, you have q = \frac{0.15}{1.15} \simeq 0.1304347826 ...How to Use the Calculator. Type your algebra problem into the text box. For example, enter 3x+2=14 into the text box to get a step-by-step explanation of how to solve 3x+2=14. .