Nov 20, 2012 #1 juantheron Messages 243 Reaction score 1 $\displaystyle \int_{0}^{\frac{\pi}{2}}\sqrt{\sin x}dx.\int_{0}^{\frac{\pi}{2}}\frac{1}{\sqrt{\sin x}}dx =$
$\displaystyle \int_{0}^{\frac{\pi}{2}}\sqrt{\sin x}dx.\int_{0}^{\frac{\pi}{2}}\frac{1}{\sqrt{\sin x}}dx =$
Nov 20, 2012 #2 JJacquelin Messages 801 Reaction score 35 Knowing the basic properties of the functions Beta and Gamma, it is easy to obtain : first integral = (1/2)*Beta(3/4 ; 1/2) second integral = (1/2)*Beta(1/4 ; 1/2) and the product of the integrals = pi.
Knowing the basic properties of the functions Beta and Gamma, it is easy to obtain : first integral = (1/2)*Beta(3/4 ; 1/2) second integral = (1/2)*Beta(1/4 ; 1/2) and the product of the integrals = pi.