WBJEE 2013 Math Solved Paper

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Question : 20 of 80

Marks: +1, -0

Let f(θ) = (1+sin2θ)(2–sin2θ). Then for all values of θ

f(θ) >
9
4
f(θ) < 2
f(θ) >
11
4
2 ≤ f(θ) ≤
9
4

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