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High School Functions
Domain Trigonometric Functions
Cluster Prove and apply trigonometric identities.
Standard Prove the addition and subtraction formulas for sine, cosine, and tangent and use them to solve problems.

HSF-TF.C.9

Prove the addition and subtraction formulas for sine, cosine, and tangent and use them to solve problems.

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Tasks

Sum and Difference angle formulas
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Coordinates of equilateral triangles
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