Math Help - Multiplying matrices.

this question is asking me to multiply by the appropriate identity matrix to the left and right to verify the identity matrix property

the matrix is 4 x 2

A=10 0
-3 8
-1 11
7 -4

Originally Posted by npm1

this question is asking me to multiply by the appropriate identity matrix to the left and right to verify the identity matrix property

the matrix is 4 x 2

A=10 0
-3 8
-1 11
7 -4

What have you done? Where are you stuck? I suggest you review your class notes and textbook on how to multiply matrices.