If A= pmatrix 1 5 & 2 5 -2 5 & 1 5 pmatrix , B= pmatrix 1&0 &1 pmatrix , i= -1 , and Q = A^TBA, then the...

Question

If A= pmatrix 1 5 & 2 5 -2 5 & 1 5 pmatrix , B= pmatrix 1&0 &1 pmatrix , i= -1 , and Q = A^TBA, then the inverse of the matrix AQ^ 2021 A^T is equal to :

Accepted Answer

(D)

JEE Main 2021 Mathematics question

Solution