Question

please provide a complete solution and explanation , thank you

Ka. 3. If 4-point signal x[nl-(4,3,2,1), then xI ((-3))4] a)I b) 2 c) 3 Ed)at e) none above

Answer 1

the signal can be repeated circularly with the given values

Given discrete - time signal x (n) is x (n) = { 4, 3, 2, 1} when we shift linearly, the remaining sampled are considered as zeros. Where as in circular shift the same signal will repeat at its both sides. the signal can be repeated circularly with the given values From the above figure we can write x(-3) = 3

From the above figure we can write x(-3)=3

Another method: