In MATLAB, open and run the LiveScript MAT$343$lab$3$ex$1.$mlx$.($Note: when you download the file,, make sure to add the extension $.$mlx and save as "All files". Then double click on it to open it in MATLAB. $)$

Generate a random

$4$

$\backslash$times

$3$

matrix with entries in between

$$

$10$

and

$10$

using the command

A$=$randi$([-10,10],[4,3])$

Perform the operations

E$1*$A

E$2*$A

E$3*$A

$($here E$1,$ E$2$ and E$3$ are the elementary matrices generated in the Live Script$).$

Compare the matrix A with each of the products and answer the following questions.

Flag question: Question $1$

Question $13$ pts

Match the result of each operation with its description of its effect on the matrix A $($some descriptions will not match$)$

Group of answer choices

E$1*$A

$[$ Choose $]$

E$2*$A

$[$ Choose $]$

E$3*$A