Trigonometric Functions & Equations

Section: Mathematics

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Question : 14 of 30

Marks: +1, -0

The value of

13

∑

k=1

1

sin(

π

4

+

(k−1)π

6

)sin(

π

4

+

kπ

6

)

is equal to

[JEE Adv 2016 P2]

3−√3
2(3−√3)
2(√3−1)
2(2+√3)

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