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”
SCT S O H C A H T O A ineine ppositepposite ypotenuseypotenuse osineosine djacentdjacent ypotenuseypotenuse angentangent ppositepposite djacentdjacent
Identify each of the following: Hypotenuse Opposite Opposite Adjacent Adjacent
Sin(A) = Cos(A) = Tan(A) = A B C = 4 5 = 3 5 = 4 3
R S T Sin(T) = Cos(T) = 5 13 Tan(T) = 12 5 Sin(S) = 5 13 Cos(S) = Tan(S) = 5 12
Part 2: Revenge of SECANT Find the unknown trig functions: Pencils Down
R T S sin(T) = cos(T) = 8 17 tan(T) = 15 8 csc(T) = sec(T) = 17 8 cot(T) = 8 15 Part 2: Revenge of SECANT Example 1: Pencils Down
Part 2: Revenge of SECANT Example 2: Pythagorean Theorem
Part 2: Revenge of SECANT Try one: Pythagorean Theorem