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Let A=[[0, 0 ,-1],[0,-1,0],[-1,0,0]]. Th...

Let `A=[[0, 0 ,-1],[0,-1,0],[-1,0,0]]`. The only correct statement about the matrix `A` is

A

1)`A^(-1)` does not exist

B

2)`A=(-1) I` where `I` is the unit matrix

C

3)`A` is a zero matrix

D

4)`A^(2)=I`

Text Solution

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The correct Answer is:
D
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