The derivative of f(tan x) w.r.t g(sec x) at x= 4 where f'(1) = 2 and g'( 2 )=4 is

MHT CET 2023 Mathematics question

The derivative of f(tan x) w.r.t g(sec x) at where f'(1) = 2 and is

Answer: (A)

. At : , , . So the value is

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Question ID VK-097463