please could someone solve the following definate integrals. help will be much appreciated.

A)

$\displaystyle

\int_0^{\pi^2} \left(\sin 4\theta - \cos 4\theta\right)^2d\theta

$

Note: the pi is supposed to be pi over 2 rather than squared.

B)

$\displaystyle

\int_1^2(15x^3+e^2x-\frac{4}{x})dx

$