a) Find the volume of the solid bounded by z=y+3x,y-x=0,x+y=2 and z=y.
b) Evaluate the integral ∬_(D)(xy)dA where D is the intersection of D_(1)={(r, heta ):,r<=4cos( heta )} and D_(2)={(r, heta ):,r<=4sin( heta )}
a Find the volume of the solid bounded byz-y+3x,y-x=0,x+y=2andz=y. [5]
b)Evaluate the integral
(xy) dA where D is the intersection of D={r0r4cos0}andD={(r,0r4sin0}