Solve the questions and prove your answers by using mathematical software( MATLAB)

(c) (i) By using polar coordinate, evaluate SSR x2 + y2 dA, if R is the region in between circle x2 + y2 = 1 and x2 + y2 = 4 in the first octant. (5 marks) (ii) By using double integrals, find the area of the regions enclosed by y=sin x, y = cos x,x = (5 marks) TT TT