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IF A and B are squre matrices of order 3...

IF A and B are squre matrices of order 3, then the true statement is/are (where I is unit matrix).

A

det(-A)=-detA

B

If AB is singular then atleast one of A or B is singular

C

`det(A+I)=1+detA`

D

`det(2A)=2^(3)"detA"`

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The correct Answer is:
A, B, D
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RESONANCE-MATRICES & DETERMINANT-PART-III

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