Let A and B be two invertible square mat

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Target Exam

CUET

Subject

-- Mathematics - Section A

Chapter

Linear Programming

Question:

Let A and B be two invertible square matrices of same order, then which of the following is not correct ?

Options:

$(AB)^{-1}=B^{-1}A^{-1}$

$(AB)^T=B^TA^T, $ where T stands for transpose

If $A^T=-A,$ then A is a skew-symmetric matrix

Multiplication of A and B is always commutative

Correct Answer:

Multiplication of A and B is always commutative