NIELIT SC B 2017 (DEC)

Question

Consider two matrices M₁ and M₂ with M_{1 *} M₂ = 0 and M₁ is non singular. Then which of the following is true?

1. M₂ is non singular
2. M₂ is null matrix
3. M₂ is the identity matrix
4. M₂ is transpose of M₁

Comments

Option 2.

M2 is null matrix.

Take inverse of M1 on both sides you'll get it.

Answer 1

B. M2 is null Matrix