The value of \(\int^{\pi/2}_0\) \(\int^{cosθ}_0\) r sin θ dr dθ is

The value of \(\int^{\pi/2}_0\) \(\int^{cosθ}_0\) r sin θ dr dθ

1.	The value of \(\int^{\pi/2}_0\) \(\int^{cosθ}_0\) r sin θ dr dθ is
A.	π
B.	\(\frac{1}{6}\)
C.	\(\frac{4}{3}\)
D.	0
Answer» C. \(\frac{4}{3}\)