User Robert Lee

Robert Lee

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It's not trivial.

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Nov 15, 2021

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definite-integrals

Jun 6, 2022
integration

Feb 23, 2022
calculus

Mar 11, 2022

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How to prove $\int_0^1 \frac{\arctan^2(x)\ln\left(\frac{x}{(1-x)^2}\right)}x \, \mathrm{d}x=G^2$?

Mar 16, 2022

Find the value of $\displaystyle \int \limits _{0}^{\infty} \dfrac{\mathrm dx}{\sqrt{x^n+a} + \sqrt{x^n+b}}$

Mar 9, 2022

How to prove $\int_{0}^{\infty} \frac{(1-x^2) \, \text{sech}^2\left(\frac{\pi x}{2} \right)}{(1+x^2)^2}\, dx = \frac{\zeta(3)}{\pi}$?

Sep 17, 2021

Integral of the shark function

Sep 11, 2021

How to show $ \int_{-\infty}^{\infty} \frac{e^{-(x+1)^2}}{1+e^{-x}}\mathrm{d}x = \frac{\left(2\sqrt[4]{e} -1 \right)\sqrt{\pi}}{2e}$?

Sep 25, 2022

Find matrix $A\in \mathcal{M}_n (\mathbb{N})$ such that $A^k =\left( \sum_{i=1}^{k}10^{i-1} \right)A$.

Sep 27, 2020

What other tricks and techniques can I use in integration?

Apr 26, 2021

How can I prove that these definitions of curl are equivalent?

Jul 13, 2020

Find the minimum of $\sqrt{\cos x+3}+\sqrt{2\sin x+7}$ without derivative

Jan 6

How can I solve this defined integration in an efficient way?

May 11, 2022