Paradox involving Euler's identity
3712
Why $\sqrt{-1 \cdot {-1}} \neq \sqrt{-1}^2$?
29256
Question on the hydrostatic paradox
105237
Alternating sum of binomial coefficients identity
139625
Proof of a Fibonacci identity
91783
Explain the Birthday Paradox
114411
Simple Proof of the Euler Identity $\exp{i\theta}=\cos{\theta}+i\sin{\theta}$
63769
Group theory proof of Euler's theorem ($a^{\phi(m)} \equiv 1\mbox{ }(\mbox{mod }m)$ if $\gcd(a,m)=1$)
57944
Euler's Formula application for distinct odd primes with gcd 1
89552
proving combinatorics identity - $\sum_{k=0}^m{n-k \choose m-k}={n+1 \choose m}$
100399
A doubt with a part of a certain proof.
156564
Prove the identity $\sum_{{{\underset{k-even}{k=0}}}}^{n}{n \choose k}2^{k}=\frac{3^{n}+(-1)^{n}}{2}$
45958
Proof that the Euler characteristic is additive
140632
A problem on Binomial Theorem
29531
A Question On Euler's Proof Of the Basel Problem
35771
How can I solve this quantum mechanical "paradox"?
66061
Why is the formula for calculating euler totient true?
8311
Is there another proof for Euler–Mascheroni Constant?