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A calculator has a key which replaces the displayed entry with its square and another key which replaces the displayed entry with its reciprocal.Let y be the final result, if one starts with an entry x is not equal to zero and alternately squares and reciprocates n times each. Assuming the case is completely accurate (Ex:- no rounds off errors/over flow errors) then y=?
1) x^((-2)n)
2)X^2n
3)X^(-2)^n
4)X^((-1)n2n)

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