Question

, is equal to

Solution

Correct option is

As  AB = I, we get B = A–1   

    

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SIMILAR QUESTIONS

Q1

If A is an orthogonal matrix, then |A| is

Q2

If A is a non-singular matrix of size 3 × 3, then adj (adj A) is equal to

Q3

If A and B are two non-zero square matrices of the same order such that the product AB = O, then  

Q5

If A and B are two square matrices such that B = –A–1 BA, then (A + B)2 is equal to 

Q7

The value of x for which the matrix  is inverse of  is 

Q8
Q9

If A is a 3 × 3 skew-symmetric matrix, then trace of A is equal to

Q10

, then is equal to