CCSS.Math.Content.HSF.TF.C.8 - Objective

Prove the Pythagorean identity sin²(θ) + cos²(θ) = 1 and use it to find sin(θ), cos(θ), or tan(θ) given sin(θ), cos(θ), or tan(θ) and the quadrant of the angle.

High School Functions · Common Core State Standards · Common Core 2010