Mathematics · 2016
JEE Main · 9 April 2016, Shift 1 · Q89
If m and M are the minimum and the maximum values of 4+1/2 sin^2 2 x-2 cos^4 x, x ∈ R, then M-m is equal to:
If $\displaystyle m$ and $\displaystyle M$ are the minimum and the maximum values of
$\displaystyle 4+\frac{1}{2} \sin ^2 2 x-2 \cos ^4 x, x \in \mathbf{R}$, then
$\displaystyle M-m$ is equal to :
Official answer
(2)
$\displaystyle \frac{9}{4}$
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JEE Main 2016 Mathematics question, with the answer from NTA’s final answer key. Where our answers come from.