This PDF file contains 12 trig identities to verify, accompanied by sample solutions. See preview images for examples.It is designed to be for student practice after this concept has been introduced, but it could also just serve as a resource for teachers, a bank of problems/examples to pull from. The verifications involve algebraic work such as multiplying by a conjugate and making a common denominator, and trigonometric substitutions, such as using Pythagorean, quotient, and cofunction identit