KCET 2018 Math Solved Paper

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Question : 50 of 60

Marks: +1, -0

If f (x) = | cosx - sin x |, then f′(

π

6

) is equal to

−
1
2
(1+√3)
1
2
(1+√3)
−
1
2
(1−√3)
1
2
(1−√3)

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