Trigonometric Functions

### Lessons for this standard

Resources cannot be aligned to this standard, browse sub-standards to find lessons.

### Related standards

- This standard is part of: HS.F-TF
- This standard is derived from: CCSS.Math.Content.HSF-TF.A

#### More specific sub-standards

Understand radian measure of an angle as the length of the arc on the unit circle subtended by the angle.

Explain how the unit circle in the coordinate plane enables the extension of trigonometric functions to all real numbers, interpreted as radian measures of angles traversed counterclockwise around the unit circle.

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.

Use the unit circle to explain symmetry (odd and even) and periodicity of trigonometric functions.

#### Similar standards elsewhere

Extend the domain of trigonometric functions using the unit circle.

Extend the domain of trigonometric functions using the unit circle

Extend the domain of trigonometric functions using the unit circle

Extend the domain of trigonometric functions using the unit circle