1. Given the matrix as shown below

n_array =

3 1 8

3 5 7

4 9 2

Write a M-file script program that generates this n_array, and answer each question using one line of MATLAB statement.

a) Replace the second column of the n_array with a column of 0s

b) Replace the element in the second-row, third-column with a zero

c) Change the n_array to a 4 x 3 array by adding a row of 0s

The end result for the n_array will be

n_array =

3 0 8

3 0 0

4 0 2

0 0 0