CUSAT 2022 BTech Solved Paper Shift 4

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Question : 197 of 200

Marks: +1, -0

If θ is an acute angle such that tan2θ=‌

8

7

, then the value of ‌

(1+sin‌θ)(1−sin‌θ)

(1+cos‌θ)(1−cos‌θ)

is

‌
8
7
‌
7
8
‌
7
4
‌
64
49

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