Let P and Q be 3 x 3 matrices with P Q. If P3 = Q3 and P2Q = Q2P , then determinant of (P2 + Q2) is equal to
-2
1
0
-1
As we learnt in
Property of matrix multiplication -
It is associative .
- wherein
Given
Option 1)
-2
This option is incorrect.
Option 2)
1
This option is incorrect.
Option 3)
0
This option is correct.
Option 4)
-1
This option is incorrect.
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