CUET and UG exam JEE Main Mock Test Series 2025 Mathematics Relations and Functions Range of a Function
Let f(x) = 2 cos-1 x + 4 cot-1x - 3x2 - 2x + 10, x ∈ [- 1, 1]. If [a, b] is the range of the function f, then 4a - b is equal to :
1
11
2
11 - π
3
11 + π
4
15 - π