Question

Expand (x/y+1/x)2 and answer

Answer 1

Given :-

( x/y + 1/x )²

[ Use : ( a + b ) ²  = a² + b² + 2 a b ]

==> x²/y² + 1/x² + 2 × x/y × 1/x

==> x²/y² + 1/x² + 2/y

The answer is x²/y² + 1/x² + 2/y

Hope it helps :-)

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