definite-integral

Question: $\int_{0}^{\pi /2}{{{\sin }^{5}}x\,dx=}$



1) $\frac{8}{15}$
2) $\frac{4}{15}$
3) $\frac{8\sqrt{\pi }}{15}$
4) $\frac{8\pi }{15}$
Solution: Explanation: No Explanation
Summation of series by definite Integration

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