Can I See Some ID, Please?

One of the more enjoyable topics in precalculus and trigonometry is verifying trigonometric identities. In this type of problem, you are presented with two trig expressions, and it’s up to you to prove they are equal. We use all of the fundamental trig identities that we already know to be true: the Pythagorean Identities, the Reciprocal Functions, and the Quotient Identities.

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