For each of following functions, try to estimate a small interval in which it has its roots in. 1. f(x) = x3 3x + 4 and [a b] = [? ?]. 2. f(x) = 2* 1 and [a b] = [? ?]. Q. No. 2 (Part-1) MATLAB Code Here ... Plot Figure here .... Root description here ... Q. No. 2 (Part-2) MATLAB Code Here ... Plot Figure here .... Root description here