Pre-Calculus Practice Problem 198

Pre-Calculus Practice Problem 198 - Unit 6, Activity 5,...

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Unit 6, Activity 5, Working with the Properties and Formulas for the Trigonometric Functions with Answers Blackline Masters, Advanced Math - Pre-Calculus Page Louisiana Comprehensive Curriculum, Revised 2008 196 1. Which of the following equations represent the same function? Use the sum and difference formulas, the co-function and the even/odd properties to find your answer. a) y = sin x b) y = cos x c) y = sin (-x) d) y = cos(-x) e) y = -sin x f) y = -cos x g) yx =+ F H G I K J sin π 2 h) =− F H G I K J sin 2 i) F H G I K J cos 2 j) F H G I K J cos 2 k) y = cos( x + π ) l) y = cos( x - π ) m) y = sin( x + π ) n) y = sin( x - π ) o) F H G I K J cos 2 1. a, j , and o represent the same function; b, d, and g represent the same function; c, e, i, m, and n represent the same function, and f, h, k, and l represent the same function. 2. Solve each of the following equations for 0
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