Badge
| Enlightened | First to answer and accepted with score of 10 or more. This badge can be awarded multiple times. |
lab bhattacharjee earned this badge 14 times |
mar 23 at 23:43
Prime $p$ with $p^2+8$ prime
feb 15 at 18:04
Evaluate $\sum_{k=1}^{\infty} \frac{k^2-1}{k^4+k^2+1}$
jan 19 at 4:04
Showing that $\displaystyle\int_{-a}^{a} \frac{\sqrt{a^2-x^2}}{1+x^2}dx = \pi\left (\sqrt{a^2+1}-1\right)$.
jan 7 at 18:53
Proving that $\left(\frac{1}{0!}+\frac{1}{1!}+\frac{1}{2!}+\frac{1}{3!}+\cdots+\frac{1}{n!}\right)$ has a limit
dec 25 at 14:31
Help me solve this olympiad challenge?
nov 5 at 10:51
Prove that an expression is divisible by a polynomial
oct 25 at 13:41
Integrating $\frac{\log(1+x)}{1+x^2}$
sep 16 at 8:29
Why does $\tan^{-1}(1)+\tan^{-1}(2)+\tan^{-1}(3)=\pi$?
