WBJEE 2013 Math Solved Paper

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Question : 29 of 80

Marks: +1, -0

Let f(x) = sin x + 2 cos2x ,

π

4

≤ x ≤

3π

4

. Then f attains its

minimum at x =
π
4
maximum at x =
π
2
minimum at x =
π
2
maximum at x = sin−1(
1
4
)

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