UPSC NDA 2 2012 Mathematics Paper

© examsiri.com

Question : 25 of 120

Marks: +1, -0

If the matrix AB is a zero matrix, then which one of the following is correct?

A must be equal to zero matrix or B must be equal to zero matrix
A must be equal to zero matrix and B must be equal to zero matrix
It is not necessary that either A is zero matrix or B is zero matrix
None of the above

Go to Question:

Prev Question

Next Question