Definite-Integration Question 513
Question: $ \int_0^{\pi /2}{{{\sin }^{5}}x,dx=} $
Options:
A) $ \frac{8}{15} $
B) $ \frac{4}{15} $
C) $ \frac{8\sqrt{\pi }}{15} $
D) $ \frac{8\pi }{15} $
Show Answer
Answer:
Correct Answer: A
Solution:
$ \int_0^{\pi /2}{{{\sin }^{5}}xdx=\frac{\Gamma (3).\Gamma (1/2)}{2.\Gamma (7/2)}=\frac{8}{15}} $ .