I have confusion in these problems, plx don't submit copied answer also give matlab script

Example 4.10. Considering the sequence x(0) = 1, *(t) = 2 x(2) = 3, and x(3) = 4, and given 1. - 100H, T -0.01 seconds, compute the amplitude spectrum, phase spec trum, and power spectrum a. Using the triangular window function b. Using the Hamming window function