The derivative of f(sec x) with respect to g(tan x) at x= 4, where f'( 2)=4 and g'(1)=2, is

MHT CET 2023 Mathematics question

The derivative of f(sec x) with respect to g(tan x) at , where and g'(1)=2, is

Answer: (C)

. At : , , . So the value is

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Question ID VK-094798