Q If A is a matrix of order m×2 and A+B and AB are defined , find m - Maths - Matrices

Question

Q If A is a matrix of order m × 2 and A+B and AB are defined
, find m ?

Rishabh Mittal · Accepted Answer

Dear Student,

If A + B is possibleThen order of B= Order of A=m × 2AB is defined
So, Number of columns of A = number of rows of B2 = mValue of m=2

Regards

Q. If A is a matrix of order m × 2 and A+B and AB are defined , find m ?