Mathematics | Course : Model Algebra II (Traditional Pathway)
Domain - Trigonometric Functions
Cluster - Prove and apply trigonometric identities.
[AII.F-TF.C.8] - 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.
[GEO.G-SRT.C.6] -
Understand that by similarity, side ratios in right triangles are properties of the angles in the triangle, leading to definitions of trigonometric ratios for acute angles.
[AII.F-TF.A.2] -
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.
[PC.F-TF.C.9] -
(+) Prove the addition and subtraction formulas for sine, cosine, and tangent and use them to solve problems.
[AQR.F-TF.C.9] -
(+) Prove the addition and subtraction formulas for sine, cosine, and tangent and use them to solve problems.