JEE Main & Advanced
Mathematics
Differentiation
Question Bank
Numerical Value Type Questions - Differentiation
question_answer
If the derivative of f\[\left( \tan x \right)\] w.r.t. \[g\left( \sec \,\,x \right)\]at \[x=\pi /4,\] where \[f'\left( 1 \right)=2\] and \[g'\left( \sqrt{2} \right)=4\] is \[\frac{\sqrt{2}}{k}\] then find k?