UPSC NDA 2 2012 Mathematics Paper

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Question : 70 of 120

Marks: +1, -0

If f(x)=2sin‌x, then what is the derivative of f(x) ?

2sin‌x‌ln‌2
(sin‌x)2sin‌x−1
(cos‌x)2sin‌x−1
None of the above

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