$1.)(1)$ SKETCH the region enclosed by $y=sinx,y=cosx,x=0,$ and $x=\frac{}{2}$ and find its area.

$(2)$ SET$-$UP $($but do not evaluate$)$ the integral expression that will give the volume of the region bounded by the graphs of $y=x$ and $y=x^2$ revolved about $y=2.$

$(3)$ SET$-$UP $($but do not evaluate$)$ the integral expression that will give the volume of the region bounded by the graphs of $y=x-x^2,y=0$ revolved about $x=2.$