Section 3-2. Proving Trig Identities. Objective. In this section we will prove that two identities are equal. Solving Trig Identities. YOU WILL SOLVE THESE TWO DIFFERENT WAYS Start with one side, and manipulate until it equals the other side Manipulate both sides until they are equal.
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Proving Trig Identities
4. Work with the more complicated side first
5. When there is a squared function ( ) you will usually use one of the Pythagorean identities.
6. When both sides are complicated, simplify both so they match