Integration of Trigonometric Functions

Sometimes, you will need to find integrals of trigonometric functions. Below is a list of common formulas for integrating trigonometric functions. Since all indefinite integrals differ by an arbitrary constant which is usually denoted by C, we will not keep writing (+ C) in our formulas below. The integration formulas of trigonometric functions below will greatly help you solve integration problems involving trigonometric functions such as sinx, cosx, tanx, sinhx, coshx, and cotx. There are many more formulas than those shown below which will be discussed in another section.