Let 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 {\f}, then 4 {\a}- {\b} is equal to : [26-Jun-2022-Shift-1]

JEE Main 26 June 2022 Shift 1 Solved Paper

Section: Mathematics

Question : 19 of 90

Marks: +1, -0

Let f(x)=2cos−1x+4cot−1x−3x2−2x+10,x∈[−1,1]. If [a,b] is the range of the function f, then 4a−b is equal to :

[26-Jun-2022-Shift-1]

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