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JEE MAIN 2022
26-06-2022_S1
Question
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 then $4 a-b$ is equal to :
Select the correct option:
A
11
B
$11-\pi$
C
$11+\pi$
D
$15-\pi$
✓ Correct! Well done.
✗ Incorrect. Try again or view the solution.
Solution
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Question Tags
JEE Main
Mathematics
Hard
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