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Negar Mich Erin Chpt8-Trig - FeaturingTheCanucks By Erin...

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By: Erin, Michelle, and Negar Featuring The Canucks 
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Table of Contents Trigonometry Introduction Solving right triangle Introduction to Cosine law Cosine law Introduction to Sine law Sine law Obtuse and reflex angles C.A.S.T Tips and proven strategies Problem Solving with Trig Quiz Answers
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Introduction SOH CAH TOA helps you remember which trig function to use in order to find sides or angles of a right triangle. When you Input angles into the primary trig functions , the output is the ratio of the sides of a right triangle SineA = opp hyp Co sin eA = Adj Hyp TangentA = Opp Adj A = Sin - 1 Opp Hyp æ è ç ö ø ÷ A = Cos - 1 Adj Hyp æ è ç ö ø ÷ A = Tan - 1 Opp Adj æ è ç ö ø ÷ When you Input ratios of a right triangle into the inverse trig functions the output is the angle.
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Solving Right Triangles A B C < C = cos - 1 2 5 æ è ç ö ø ÷ = 66 o < A = sin - 1 2 5 æ è ç ö ø ÷ = 24 o x SideAB 2 24 tan : = x = 24 ταν 2 6 . 4 = ξ 2 5 SOLVE TRIANGLE ABC SOLVE TRIANGLE ABC Use Tangent to find Side AB: Use Tangent to find Side AB: To Find Angle A: To Find Angle A: To Find Angle C: To Find Angle C:
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