(+) Use special triangles to determine geometrically the values of sine, cosine, tangent for π/3, π/4 and π/6, and use the unit circle to express the values of sine, cosine, and tangent for π–x, π+x, and 2π–x in terms of their values for x, where x is any real number.    

Category: Functions
Domain: F-TF Trigonometric functions
Cluster: Extend the domain of trigonometric functions using the unit circle


All Standards    Common Core Standards 8-12



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