1.

If A is a 3x3 matrix and B is its adjoint matrix the determinant of B is 64 then determinant of A isA. 64B. `ppm64`C. `pm8`D. 18

Answer» Correct Answer - C
We have,
`absB=64`
`rArr abs(adjA)=64rArr abs(A)^2=64rArr absA=pm8`.


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