COMEDK Exam 2016 Solved Paper

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Question : 167 of 180

Marks: +1, -0

If f(x) and g(x) are two functions with g(x)=x−‌

1

x

and f∘g(x)=x3−‌

1

x3

, then f′(x)=

3x2+‌
3
x4
1+‌
1
x2
x2−‌
1
x2
3x2+3

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