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JEEMAIN and NEET
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JEEMAIN PAST PAPERS
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2009
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Q)
Let $y$ be an implicit function of $x$ defined by $x^{2x} - 2x^{x} \cot y -1 =0$. Then $y'(1)$ equals
( A ) 1
( B ) -1
( C ) -log 2
( D ) log 2
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