please solve the circular convolution by using DFT method

(2, if n= 0, 1, 2, 3, 4, 5, 6, 7 x[n] = 10, else h[n] = 1-2, if n=0, 1, 2, 3, 4 0, else a. Calculate the N=13-point circular convolution y[n] of x[n] and h[n]. Isy[n], equal to the linear convolution of x[n] and h[n]? Determine. b. Since 2[k] = Y[k](1 Ww2K)/X[k], determine z[n] and show in the time plane. (2, if n= 0, 1, 2, 3, 4, 5, 6, 7 x[n] = 10, else h[n] = 1-2, if n=0, 1, 2, 3, 4 0, else a. Calculate the N=13-point circular convolution y[n] of x[n] and h[n]. Isy[n], equal to the linear convolution of x[n] and h[n]? Determine. b. Since 2[k] = Y[k](1 Ww2K)/X[k], determine z[n] and show in the time plane