Pre calculus Problem of the Day

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Pre calculus Problem of the Day Homework p. 578
1-21 odds
Simplify the following
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Trigonometric Identities - a statement of
equality that is true for all values where the
function is defined.
Reciprocal Identities
Quotient Identities
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Pythagorean Identities
Even/Odd Identities
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Verifying Trigonometric Identities
To verify a trigonometric identity we must show
that one side of the identity can be simplified
so that it is identical to the other side or each
side can be simplified independently until they
are identical. Never treat an identity like an
equation. We are not solving for the variable.
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• Techniques for verifying trigonometric
  identities.
• Rename using the fundamental identities.
• Rewrite a more complicated side in terms of sines
  and cosines.
• Factor.
• Combine fractional expressions using an LCD.
• Separate a single-term quotient into two terms.
• Multiply the numerator and denominator on one
  side by a binomial factor that appears on the
  other side of the identity.

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