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If A=[""(2)^(1)" "(-1)^(-1)],B=[""(y)^(x...

If `A=[""_(2)^(1)" "_(-1)^(-1)],B=[""_(y)^(x)" "_(-1)^(1)]` and `(A+B)^(2)=A^(2)+B^(2)`, find x and y.

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The correct Answer is:
x=1, y=4
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