1. Find c fourier coefficients for x[n] in figure. x[n] LELLI L.I.I 2 -4 -3-2-1 0 1 2 3 4 5 a) none of these b) ck ={ 1,0,1} c) ck =( 1,-1,0} d) ck =( 1,1,1} e) ck =( 1,-1,1} f) ck =( 0,-1,1} Bo brak