Trigonometric Identities

Proving and applying trigonometric identities to solve problems in the real-world.

Mapped to CCSS Section# HSF.TF.C.8, HSF.TF.C.9

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. Prove the addition and subtraction formulas for sine, cosine, and tangent and use them to solve problems.