Topic A helps students recall how to use special triangles positioned within the unit circle to determine geometrically the values of sine, cosine, and tangent at special angles. The unit circle is used to study the values of sine, cosine, and tangent and to explain the periodicity of the trigonometric functions and their symmetries. Students develop the addition and subtraction formulas for sine, cosine, and tangent and use them to solve problems and to model geometric phenomena. Students model waves, waves traveling together, and wave patterns generated by musical instruments.
Precalculus and Advanced Topics Module 4 Topic A
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Common Core Learning Standards
|F.TF.3||(+) Use special triangles to determine geometrically the values of sine, cosine, tangent for π/3, π...|
|F.TF.4||(+) Use the unit circle to explain symmetry (odd and even) and periodicity of trigonometric...|
|F.TF.9||(+) Prove the addition and subtraction formulas for sine, cosine, and tangent and use them to solve...|