number 4 and 5 in Matlab language

2.) Given a Matrix A-(1,2,3,4,5,6;7,8,9), B = 12,4,6;8,10,12,14,16,18). Answer the following questions: a.) A+B b.) 2 A c.) 5./B d.) B.^2 3.) Given the above two matrices, what commands would allow you to take the bottom row of Matrix B and store this as the top row of Matrix A? 4.) Given the above two matrices, what commands would allow you to take the last column of A and exchange this with the middle column of B? 5.) Given the above two matrices, what command (or series of commands) would allow you to store the elements from the corners of the matrix B into the corner of the matrix A. 6.) What commands would allow you to create a random 2by2 matrix C and store this into the bottom corner of Matrix B