Plz help will give brainliest and lotzzz of point

e^{i x} = \cos x + i \sin x  

When x = \pi , the value of \cos x  is -1, while i\sin x  is 0, resulting in Euler’s identity, as -1 + 1 = 0.

\displaystyle \sum_{n} \frac{1}{n^s} = \prod_{p} {\frac{1}{1 - \frac{1}{p^s}}}

Explanation: