JEE Main 09 April 2016 Paper

Section: Mathematics

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Question : 71 of 90

Marks: +1, -0

If the function

f(x){

−x,	x<1
a+cos−1(x+b),	1≤x≤2

is differentiable at x=1, then

a

b

is equal to:

[Main 9 Apr 2016]

π−2
2
−π−2
2
π+2
2
−1−cos−1(2)

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