Question

If A and B are matrices of order 3 and |A| = 5, |B| = 3,then find |3AB|.

Answer 1

this question is in the form of (a+b)2=a2+b2+2ab

create equations 1 and 2 and then solve it with dongitions method

Answer 2

this question is in the form of (a+b)2=a2+b2+2ab

create equations 1 and 2 and then solve it with dongitions method