10.2.1 Trigonometric Identities

10.2.1 - Trigonometric Identities Identities Section 10.2.1 Reciprocal Identities Reciprocal 1 csc θ = sin θ 1 cot θ = tan θ 1 sec θ = cos θ

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Unformatted text preview: Trigonometric Identities Identities Section 10.2.1 Reciprocal Identities Reciprocal 1 csc θ = sin θ 1 cot θ = tan θ 1 sec θ = cos θ Ratio Identities Ratio sin θ tan θ = cos θ cos θ cot θ = sin θ Pythagorean Identities Pythagorean sin θ + cos θ = 1 2 2 1 + cot θ = csc θ 2 2 1 + tan θ = sec θ 2 2 Odd-Even Identities Odd-Even sin(−θ ) = − sin θ cos ( −θ ) = cos θ tan ( −θ ) = − tan θ Joke Time Joke What kind of horses go out after dark? Nightmares Two silk worms were in a race. What Two was the result? was A tie ...
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This note was uploaded on 12/01/2011 for the course MATH 112 taught by Professor Jarvis during the Fall '08 term at BYU.

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