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  • Member for 9 years, 5 months
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21 votes

What is the largest prime number?

15 votes

Proof of elementary row operations for matrices?

4 votes

Best Math books or apps for adults to learn math from the beginning

4 votes

Don't see the point of the Fundamental Theorem of Calculus.

3 votes
Accepted

Solving Trigonometric Equation Problem

3 votes
Accepted

induction help proving the sum of the n powers of 2

3 votes
Accepted

$\sum_{n=1}^\infty \frac{1}{n^4}=\frac{\pi^4}{90}$

2 votes
Accepted

Derivative of $\frac{\sin \coth x}{\csc \sqrt{e^{\log x}}}$

2 votes

Why $\sin(n\pi) = 0$ and $\cos(n\pi)=(-1)^n$?

2 votes

Proof of the substitution rule for integrals for the indefinite case

1 vote

Understanding matrices.

1 vote

Prove this identity: $\cos x(\sec x-\cos x)=\sin^2x$

1 vote

Cubic trig equation

1 vote

Making trigonometric substitutions rigorous

0 votes

Find a primitive to $\int \frac{\ln x}{x} x^{10} \:\mathrm{d}x$

0 votes

PDE Laplace equation. Integral representation form and Green function

-1 votes

infinity times infinitesimal - what happens?