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# Objectives : 1. To use identities to solve trigonometric equations Vocabulary : sine, cosine, tangent, cosecant, secant, cotangent, cofunction, trig identities

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### Text of Objectives : 1. To use identities to solve trigonometric equations Vocabulary : sine, cosine,...

Objectives:1. To use identities to solve trigonometric

equations

Vocabulary:sine, cosine, tangent, cosecant, secant, cotangent, cofunction, trig identities

Strategies Recall…

Strategies Recall…

Strategies Recall…

StrategiesRecall…

Algebra 2 Solving Methods Factoring GCFs Factoring Patterns Isolating Variable Techniques Etc.

WARNING!!!!!Do not divide by sin, cos, tan, sec, csc or cot! You may lose answers. Theses are NOT one-size-fits-all problems.Always check your solutions

3cos2 cos 2;0 2Solve x x x

cos 2 1 sin ;0 2Solve x x x

Textbook p. 390 #17, 21, 27, 29

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