## Differentiation of tanx

Here you will learn what is the differentiation of tanx and its proof by using first principle. Let’s begin – Differentiation of tanx The differentiation of tanx with respect to x is $$sec^2x$$. i.e. $$d\over dx$$ (tanx) = $$sec^2x$$ Proof Using First Principle : Let f(x) = tan x. Then, f(x + h) = tan(x …