Math Doubts

Derivative Rule of Inverse Cosecant function

Formula

$\dfrac{d}{dx}{\,\csc^{-1}{x}} \,=\, \dfrac{-1}{|x|\sqrt{x^2-1}}$

Introduction

The inverse cosecant function is written as $\csc^{-1}{(x)}$ or $\operatorname{arccsc}{(x)}$ in inverse trigonometry when a variable is denoted by $x$. In differential calculus, the differentiation or derivative of the cosecant inverse function with respect to $x$ is written in following two different mathematical forms.

$(1) \,\,\,$ $\dfrac{d}{dx}{\,\Big(\csc^{-1}{(x)}\Big)}$

$(2) \,\,\,$ $\dfrac{d}{dx}{\,\Big(\operatorname{arccsc}{(x)}\Big)}$

The derivative of the inverse cosecant function with respect to $x$ is equal to the negative reciprocal of product of modulus of $x$ and square root of the subtraction of one from $x$ squared.

$\implies$ $\dfrac{d}{dx}{\,\Big(\csc^{-1}{(x)}\Big)}$ $\,=\,$ $-\dfrac{1}{|x|\sqrt{x^2-1}}$

Alternative forms

The derivative formula of cosecant inverse function can also be written in any variable. The following are some understandable examples to know how to express the derivative rule of inverse cosecant function in calculus.

$(1) \,\,\,$ $\dfrac{d}{dy}{\,\csc^{-1}{y}} \,=\, -\dfrac{1}{|y|\sqrt{y^2-1}}$

$(2) \,\,\,$ $\dfrac{d}{dm}{\,\csc^{-1}{m}} \,=\, -\dfrac{1}{|m|\sqrt{m^2-1}}$

$(3) \,\,\,$ $\dfrac{d}{dz}{\,\csc^{-1}{z}} \,=\, -\dfrac{1}{|z|\sqrt{z^2-1}}$

Proof

Learn how to prove the differentiation law for the inverse co-secant function by first principle.

Math Doubts

A best free mathematics education website that helps students, teachers and researchers.

Maths Topics

Learn each topic of the mathematics easily with understandable proofs and visual animation graphics.

Maths Problems

A math help place with list of solved problems with answers and worksheets on every concept for your practice.

Learn solutions

Subscribe us

You can get the latest updates from us by following to our official page of Math Doubts in one of your favourite social media sites.

Copyright © 2012 - 2022 Math Doubts, All Rights Reserved