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Unformatted text preview: Proving Identities
Section 3.6 Strategies for Proving Identities
3. Know the fundamental identities and
look for ways to apply them.
Write all expressions in terms sine
Work with one side of the identity
and continuously refer back to the
6. When one side contains only one trig.
function, rewrite the other side in terms
of that function.
Use the Pythagorean identities to
substitute for expressions equal to 1.
Perform algebraic operations.
Simplify complex rational expressions.
Find the LCD and combine fractions. Combine like terms.
Multiply both the numerator and
denominator by the same expression.
Replace a binomial with a monomial. Joke Time
Why did Beethoven get rid of his
Because they kept saying “Bach,
Why did the pig want to become an
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.
- Winter '11