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PUT THIS ON THE FRONT OF YOUR INDEX CARD! Opp. Hyp. Sin( ) = Adj. Hyp. Cos( ) = Opp. Adj. Tan( ) = 1 Csc( ) = Sin( )= Opp. Hyp. 1 Sec( ) = Cos( )= Adj. Hyp. 1 Cot( ) = Tan( )= Opp. Adj. Trig Functions: “Cosecant” “Secant” “Cotangent”
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SCT S O H C A H T O A ineine ppositepposite ypotenuseypotenuse osineosine djacentdjacent ypotenuseypotenuse angentangent ppositepposite djacentdjacent
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Identify each of the following: Hypotenuse Opposite Opposite Adjacent Adjacent
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Sin(A) = Cos(A) = Tan(A) = A B C 3 4 5 = 4 5 = 3 5 = 4 3
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R S T 5 12 13 Sin(T) = 12 13 Cos(T) = 5 13 Tan(T) = 12 5 Sin(S) = 5 13 Cos(S) = 12 13 Tan(S) = 5 12
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Part 2: Revenge of SECANT Find the unknown trig functions: Pencils Down
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R T S 15 8 17 sin(T) = 15 17 cos(T) = 8 17 tan(T) = 15 8 csc(T) = 17 15 sec(T) = 17 8 cot(T) = 8 15 Part 2: Revenge of SECANT Example 1: Pencils Down
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Part 2: Revenge of SECANT Example 2: Pythagorean Theorem
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Part 2: Revenge of SECANT Try one: Pythagorean Theorem
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