If A= bmatrix 1&-1 2&3 bmatrix and B= bmatrix 2&3 -1&-2 bmatrix , then which of the following is/are correct?...

Question

If A= bmatrix 1&-1 2&3 bmatrix and B= bmatrix 2&3 -1&-2 bmatrix , then which of the following is/are correct? 1. AB(A^ -1 B^ -1 ) is a unit matrix. 2. (AB)^ -1 =A^ -1 B^ -1 . Select the correct answer using the code given below :

Accepted Answer

(D)

NDA 2016 Mathematics question

Solution

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