PC Cast 14 Angle Addition and Subtraction for Cosine
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Using angle sum and difference formulas for cosine. Mr. Fjelstroms BM 10.2 and CA Trig Standard 10.0
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Standards
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Content Area: Mathematics ● Subject: High School: Functions ● Category: Trigonometric Functions
Skill: F-TF.9. (+) Prove the addition and subtraction formulas for sine, cosine, and tangent and use them to solve problems.
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