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May
11
comment How can I evaluate the following limit-integral combination?
@abiessu, no it doesn't, plus taking the limit of the dummy variable wouldn't make sense anyways.
May
11
comment How can I evaluate the following limit-integral combination?
@abiessu, it's x, I checked it numerically.
May
4
comment Find a basis and the dimension of the eigenspaces of the matrix
This is a symmetric matrix, hence its eigenspace has dimension 3 and you can just choose the standard basis for $\mathbb{R}^3$, no need to find the eigenvectors.
Apr
25
awarded  Popular Question
Apr
22
comment Diagonal decomposition, square root and eigenvector / eigenvalue of a matrix
assuming this matrix is even diagonalizable, to get $V$ and $D$ you need to already know the eigenvalues and eigenvectors, or you could just find $V$ and $D$ using computational software, otherwise I would suggest doing $Det(\lambda I - A)$ and seeing if you can factor the cubic.
Mar
31
comment What is the $x$-intercept for $\frac{2x^2}{x^2-1} = 0$
no, I'm referring to multiplying both sides by the denominator of the fraction $x^2 + 1$
Mar
31
comment What is the $x$-intercept for $\frac{2x^2}{x^2-1} = 0$
clearing denominators is a common theme in algebraic simplification
Mar
31
comment What is the $x$-intercept for $\frac{2x^2}{x^2-1} = 0$
because you can just multiply both sides by the denominator and it disappears.
Mar
31
comment What is the $x$-intercept for $\frac{2x^2}{x^2-1} = 0$
what you have in your title is the equation you need to solve to find the x-intercepts, so just solve that equation, and you'll have them.
Mar
14
awarded  Yearling
Feb
7
awarded  Popular Question
Jan
28
revised Show both relaxations of boolean LP give equal lower bounds
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Jan
28
accepted Show both relaxations of boolean LP give equal lower bounds
Jan
28
answered Show both relaxations of boolean LP give equal lower bounds
Jan
22
revised Show both relaxations of boolean LP give equal lower bounds
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Jan
21
revised Show both relaxations of boolean LP give equal lower bounds
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Jan
21
revised Show both relaxations of boolean LP give equal lower bounds
deleted 52 characters in body
Jan
21
awarded  Citizen Patrol
Jan
20
revised Show both relaxations of boolean LP give equal lower bounds
edited body
Jan
20
revised Show both relaxations of boolean LP give equal lower bounds
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