1.

If A=[(0,-1),(1,0)]B=[(0,i),(i,0)]C=[(i,0),(0,-i)] then

Answer»

`A^(2)=B^(2)=C^(2)=0`
`A^(2)=B^(2)=C^(2)=I`
`A^(2)=B^(2)=C^(2)=-I`
`A^(2)=B^(2)=C^(2)=2I`

ANSWER :C


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