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If A=[(cos alpha, -sin alpha, 0),(sin al...

If `A=[(cos alpha, -sin alpha, 0),(sin alpha, cos alpha,0),(0,0,1)]` then `A^(-1)` is

A

A

B

`-A`

C

adj (A)

D

`-"adj (A)"`

Text Solution

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The correct Answer is:
C
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NAVNEET PUBLICATION - MAHARASHTRA BOARD-QUESTION BANK 2021-MATRICES
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  9. The element of second row and third column in the inverse of [[1, 2, 1...

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  13. If A = [(3,0,0),(0,3,0),(0,0,3)], then |A||adj A| =...

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  15. Let A=[1-1 1 2 1-3 1 1 1]a n d10 B=[-4 2 2-5 0alpha1 2 3]dot If B is...

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