The value of $\int\limits^{\frac{\pi}{2}}_{-\frac{\pi}{2}}(x^3+x\, cos x+tan^5x)dx$ is :

0 1 2 $\pi $

0

$I=\int\limits^{\frac{\pi}{2}}_{-\frac{\pi}{2}}(x^3+x\, cos x+tan^5x)dx$ $=0$ (as for odd functions $\int\limits_{-a}^af(x)dx=0$)