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# Finding Exact Trigonometric Values Using Double Angle Identities

## Sine, cosine, and tangent of angles other than multiples of 30, 45, and 60 degrees.

Levels are CK-12's student achievement levels.
Basic Students matched to this level have a partial mastery of prerequisite knowledge and skills fundamental for proficient work.
At Grade (Proficient) Students matched to this level have demonstrated competency over challenging subject matter, including subject matter knowledge, application of such knowledge to real-world situations, and analytical skills appropriate to subject matter.
Advanced Students matched to this level are ready for material that requires superior performance and mastery.
• Video

## Finding Exact Trig Values Using Formulas

by Rayna Schlossberg //basic

An example of how to determine the exact value of a sine function using a half angle identity.

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• Flashcards

## Finding Exact Trig Values using Double and Half Angle Formulas

by Kyle Bardman //basic

These flashcards will help you better understand Algebra II with Trigonometry Concepts.

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