We are given two four-point sequences, h[n] and x[n] where, for n=0,1,2,3, h[n]=2(n), and ,x[n]=cos((π n)(2)). (a) Calculate the 4-point DFT H[k]. Show your work-Matlab already knows
a) H[0]=4, H[1]=-2j, H[2]=0, H[3]=2j
b) H[0]=4, H[1]=-2, H[2]=0, H[3]=2
c) H[0]=4, H[1]=2j, H[2]=0, H[3]=-2j
d) H[0]=4, H[1]=2, H[2]=0, H[3]=-2