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UPSC NDA II 2015 Mathematics Solved Paper

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Question : 77

Total: 120

The derivative of ln(x + sin x) with respect to (x + cos x) is

1+cosx
(x+sinx)(1−sinx)
1−cosx
(x+sinx)(1+sinx)
1−cosx
(x−sinx)(1+cosx)
1+cosx
(x−sinx)(1−cosx)

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