Let V(a) be the volume of the solid obtained by revolvong the region bounded by the curve y \equal{} x\sqrt {x\sin ax}\ (0\leq x\leq \frac {\pi}{a}) and x axis around the x axis.
For a>0, find the minimum value of V(a) \plus{} V\left(\frac{1}{a}\right). calculusintegrationtrigonometryinequalitiescalculus computations