How to take the derivative of tan x?

[@ThimmegowdaNM]

Really it’s helpful to students.

[@saiamith203]

Amazing , just keep on posting more stuff

[@YeahMathIsBoring]

Thanks! I will try my best

[@user-ky5dy5hl4d]

Also from cos^2(x)+sin^2(x)/cos^2(x) we get 1+tan^2(x) which is by identity of
sec^2(x)-tan^(x)=1, we have sec^2(x).

[@archangecamilien1879]

Quotient rule...