MCQ

Share

$\mathop \smallint \limits_0^\pi xf\left( {\sin x} \right)dx = $

• A
  $\;\pi \mathop \smallint \limits_0^\pi xf\left( {\cos x} \right)dx$
• B
  $\;\pi \mathop \smallint \limits_0^\pi f\left( {\sin x} \right)dx$
• C
  $\frac{\pi }{2}\mathop \smallint \limits_0^{\frac{\pi }{2}} f\left( {\sin x} \right)dx$
• ✓
  $\pi \mathop \smallint \limits_0^{\frac{\pi }{2}} f\left( {\cos x} \right)dx$