Question

If A has 3×3 matrix whose rank is 2 and B has 3×3 matrix whose rank os 3 then rank of AB is

Answer 1

Answer:

To solve these kind of questions you should always remember that if A and B are matrices then rank of AB is always less than or equal to rank of matrix A . And if the matrix B is a non -singular matrix then rank of AB is equal to A . So in case if B is a non -singular matrix then rank of (AB)= rank(A)=2 (given).

Step-by-step explanation:

Hope it will help you