## Differentiation of cos inverse x

Here you will learn differentiation of cos inverse x or arccos x by using chain rule. Let’s begin – Differentiation of cos inverse x or $$cos^{-1}x$$ : If x $$\in$$ (-1, 1) , then the differentiation of $$cos^{-1}x$$ with respect to x is $$-1\over \sqrt{1 – x^2}$$. i.e. $$d\over dx$$ $$cos^{-1}x$$ = \(-1\over \sqrt{1 – …