US Common Core State Standard Math HSF-TF.C.8

Demonstrations 1 - 3 of 3

Description of Standard: Prove the Pythagorean identity sin^{2}(θ) + cos^{2}(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.