Mathematics · 2022
JEE Main · 26 June 2022, Shift 1 · Q19
Let f(x)=2 cos^-1 x+4 cot^-1 x-3 x^2-2 x+10, x ∈[-1,1]. If [a, b] is the range of the function f, then 4 a - b is equal to:
Let $\displaystyle f(x)=2 \cos ^{-1} x+4 \cot ^{-1} x-3 x^2-2 x+10, x \in[-1,1]$. If [a, b] is the range of the function $\displaystyle f$, then $\displaystyle 4 \mathrm{a}-\mathrm{b}$ is equal to :
Official answer
(2)
$\displaystyle 11-\pi$
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JEE Main 2022 Mathematics question, with the answer from NTA’s final answer key. Where our answers come from.