NDA Math Trigonometric Ratios of Angles and Equations

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Question : 24 of 100

Marks: +1, -0

If A=sin2θ+cos4θ the for all real θ, which one of the following is correct?

[NDA II 2018]

1≤A≤2
‌‌
3
4
≤A≤1
‌‌
13
16
≤A≤1
‌‌
3
4
≤A≤‌‌
13
16

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