3.6 Proving Identities

3.6 Proving Identities - Proving Identities Proving Section...

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Unformatted text preview: Proving Identities Proving Section 3.6 Strategies for Proving Identities Strategies 1. 2. 3. Know the fundamental identities and Know look for ways to apply them. look Write all expressions in terms sine Write and cosine. and Work with one side of the identity Work and continuously refer back to the other side. other 4. 4. 5. 6. When one side contains only one trig. When function, rewrite the other side in terms of that function. of Use the Pythagorean identities to Use substitute for expressions equal to 1. substitute Perform algebraic operations. Factor Simplify complex rational expressions. Find the LCD and combine fractions. Combine like terms. Multiply both the numerator and Multiply denominator by the same expression. denominator Replace a binomial with a monomial. Joke Time Joke Why Why did Beethoven get rid of his chickens? chickens? Because Because they kept saying “Bach, Bach, Bach” Bach, Why Why did the pig want to become an actor? actor? Because he was a big ham! ...
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This note was uploaded on 12/01/2011 for the course MATH 111 taught by Professor Stuff during the Winter '11 term at BYU.

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