show-that-0-pi-4-x-sinx-1-cos-2-x-dx-pi-4-

Question Number 18222 by Arnab Maiti last updated on 17/Jul/17

show that \int_{0}^{\frac{π}{4}} \frac{x sinx}{1 + \cos^{2} x} dx = \frac{π}{4}

Commented by Arnab Maiti last updated on 17/Jul/17

please help with these questions .