WBJEE 2015 Math Solved Paper

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Question : 76 of 80

Marks: +1, -0

Which of the following statements is/are correct for 0 < θ <

π

2

?

(cosθ)
1
2
≤ cos
θ
2
(cosθ)
3
4
≥ cos
3θ
2
cos
5θ
6
≥ (cosθ)
5
6
cos
7θ
8
≤ (cosθ)
7
8

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