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OpenStudy (anonymous):
show by counterexample that (x+y)^-2and x^-2+y^-2 are not equivalent help plzz
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OpenStudy (anonymous):
Suppose (x+y)^-2 and x^-2 + y^-2 are equal. That means..|dw:1340239536317:dw| Those are not equal, therefore... \[(x+y)^2 \neq x^{-2} + y^{-2}\]
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