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If A=[[i,-i],[-i, i ]] and B=[[1,-1],[-1...

If `A=[[i,-i],[-i, i ]]` and `B=[[1,-1],[-1,1]]` ,then `A^( 8 )`equals,(where `i=sqrt(-1)` )
4B
128 B
-128 B
-64 B

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