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Unit Plan
CK-12 Foundation

Ck 12: Trigonometry: Trigonometric Equations Using Factoring

For Students 10th - 12th Standards
[Free Registration/Login may be required to access all resource tools.] This lesson covers solving trigonometric equations using factoring, square roots, and the quadratic formula.
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Unit Plan
CK-12 Foundation

Ck 12: Trigonometric Equations Using Half Angle Formulas

For Students 10th - 12th Standards
[Free Registration/Login may be required to access all resource tools.] Here you'll learn how to solve trigonometric equations using the half angle formulas.
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Handout
Purple Math

Purplemath: Solving Simple (To Medium Hard) Trig Equations

For Students 9th - 10th Standards
Introduces techniques for solving trigonometric equations. Provides worked examples of solving some simpler to medium-hard equations.