(Solved): Consider the following. \( \iint_{R}(2 x-y) d A \), where \( R \) is the region in the first quadra ...

Consider the following. \( \iint_{R}(2 x-y) d A \), where \( R \) is the region in the first quadrant enclosed by the circle \( x^{2}+y^{2}=16 \) and the lines \( x=0 \) and \( y=x \) Change the given integral to polar coordinates. \[ \int_{\pi / 4}^{A} \int_{0}^{\theta}(d r d \theta \] \[ A= \] \[ B= \] Evaluate the integral.