UPSC NDA I 2022 Mathematics Solved Paper

Question : 8 of 120

Marks: +1, -0

Consider the following statements in respect of square matrices A and B of same order :
1. If AB is a null matrix, then at least one of A and B is a null matrix.
2. If AB is an identity matrix, then BA=AB.
Which of theabove statements is\/are correct?