defence exam Agniveer Vayu Group X & XY Mock Test 01/2026 Mathematics Differential Calculus Differentiation of Parametric Functions
What is the derivative of f(tan x) w.r.t. g(sec x) at x = \(\pi\over4\), if f'(1) = 2 and g'(√2) = 4?
1
√2
2
\(\rm1\over\sqrt2\)
3
√3
4
None of these.