CUET and UG exam CUET UG 2025 Mock Test Series Mathematics Differential Calculus Applications of Derivatives
Let f(x) = tan-1 {ϕ(x)}, where ϕ(x) is monotonically increasing function for 0 < x < π/2. Then f(x) is?
1
Increasing in (0, π/2)
2
Decreasing in (0, π/2)
3
Increasing in (0, π/4) and decreasing in (π/2)
4
None of these