9.1 Trig Ratios

9.1 Trig Ratios - x = = 1 r csc sin y = = 1 x cot tan y = =...

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Trigonometric Ratios Section 9.1
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A trigonometric ratio is a ratio of sides of a right triangle. The three most common ratios are sine , cosine , and tangent . x y r θ
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SOH – CAH - TOA sine = sin = opposite y hypotenuse r = cosine = cos = adjacent x hypotenuse r = tangent = tan = opposite y adjacent r = θ
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Reciprocal Functions 1 r sec cos
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Unformatted text preview: x = = 1 r csc sin y = = 1 x cot tan y = = Special Right Triangles 2 1 1 1 Joke Time What do you get when you cross an elephant with a fish? Swimming trunks! What do you get when you cross an elephant with a kangaroo? Big holes all over Australia!...
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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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9.1 Trig Ratios - x = = 1 r csc sin y = = 1 x cot tan y = =...

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