COMEDK Exam 2017 Solved Paper

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Question : 153 of 180

Marks: +1, -0

Differentiate cos−1(‌

1−x

1+x

) w.r.t. x.

‌
1
1+x
‌
1
x(1+x)
‌
1
(1+x)√x
‌
−1
(1+x)√x

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