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 May25 comment Why is the implication “If pigs could fly, I'd be king” a true implication? it might be more intuitive to think about it in disjunctive form, one of these two statements must be true: either 'pigs can't fly' or 'I'm king'. May25 answered A question related to measura space May25 comment Show that $f$ is constant in $D(0,1)$. is $D(0,1)$ the unit disk centered at the origin? and how can $|f(0^2)|$ be strictly greater than $|f(0)|$? May23 comment How do I calculate $\int_{-\infty}^{\infty} e^{-ax^2} \;\mathrm{d}x$ for $a>0$ this is a famous integral with no anti-derivative representable in terms of special functions, you could probably just google it May11 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. May11 comment How can I evaluate the following limit-integral combination? @abiessu, it's x, I checked it numerically. May4 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. Apr25 awarded Popular Question Apr22 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. Mar31 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 $x^2 + 1$ Mar31 comment What is the $x$-intercept for $\frac{2x^2}{x^2-1} = 0$ clearing denominators is a common theme in algebraic simplification Mar31 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. Mar31 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. Mar14 awarded Yearling Feb7 awarded Popular Question Jan28 revised Show both relaxations of boolean LP give equal lower bounds deleted 12 characters in body Jan28 accepted Show both relaxations of boolean LP give equal lower bounds Jan28 answered Show both relaxations of boolean LP give equal lower bounds Jan22 revised Show both relaxations of boolean LP give equal lower bounds added 94 characters in body Jan21 revised Show both relaxations of boolean LP give equal lower bounds deleted 37 characters in body