Differentiation of Trigonometric Functions

It is possible to find the derivative of trigonometric functions.

Here is a list of the derivatives that you need to know:

d (sin x)  =  cos x dx

d (cos x)  = –sin x dx

d (sec x)   =  sec x tan x dx

d (cosec x) = –cosec x cot x dx

d (tan x) =  sec²x dx

d (cot x)  =  –cosec²x dx

One condition upon these results is that x must be measured in radians.

Applying the Chain Rule

The chain rule is used to differentiate harder trigonometric functions.

Example

Di ...