Please solve on matlab

Homework 3.docx 1. Matrix manipulation. a. Create a random matrix of A of size 4x3 using the b. Create a submatrix B composed of the elements of A that c. Create a vector C and vector D composed of the 1 row d. Create two new matrices by appending vector C'as the e. Replace the 1 column of A by the summation of 1" and command rand are located in rows 3 to 4 and columns 2 to 3 and 1" column of A, respectively last row, and appending vector D as the column of A. 3 columns of A