Derivative of tan^2x by First Principle
The derivative of tan^2x is 2tanx sec2x. Here we will find the derivative of tan square x by the first principle of derivatives. The first principle says that the derivative of a function f(x) is given by the following limit formula: $\dfrac{d}{dx}(f(x))$ = limh→0 $\dfrac{f(x+h)-f(x)}{h}$ …(I) Let us now learn how to differentiate tan square … Read more