The Weierstrass Substitution is used to simplify some integrals involving trigonometric functions as the following examples show.

The Weierstrass Substitution is used to simplify some integrals involving trigonometric functions as the following examples show. Definite integral type

Definite integral type

The Weierstrass Substitution is used to simplify some integrals involving trigonometric functions as the following examples show. Definite integral type