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If A= [[1, x],[x^2,4 y]], B= [[-3,1],[1,...

If `A= [[1, x],[x^2,4 y]], B= [[-3,1],[1,0]]` and adj `A+B=[[1,0],[0,1]],` then the value of `x` and `y` are respectively

A

(1,1)

B

`(-1,1)`

C

(1,0)

D

none of these

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A
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