Complete the following problems. Modify this document to include your solution. Use

the highlighter to highlight your text answers in yellow. Include figures as needed. Note

that Matlab will allow you to save the figure as a jpeg or png file.

$1.$ Give the Matlab command to create the following matrix as M in the workspace:

$123$

$456$

$789$

a$.$ Use the sum command to sum the third column of the matix. Use the :

operator to indicate all rows.

b$.$ Give the command that will find the product of M$22$ and M$31$

c$.$ Give the result for $>>$a$=$M$(2$:$3,[1,3$