JEE Main 08 Apr 2018 Code A Solved Paper

Section: Mathematics

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Question : 88 of 90

Marks: +1, -0

If sum of all the solutions of the equation

8cosx.(cos(

π

6

+x).cos(

π

6

−x)−

1

2

)=1

in [0,π] is kπ, then k is equal to:

[Main 8 April 2018]

2
3
13
9
8
9
20
9

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