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Unit: Trigonometry

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Possible mastery points

Special trigonometric values in the first quadrant

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Trig values of π/6, π/4, and π/3Get 3 of 4 questions to level up!

Trigonometric identities on the unit circle

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Trig identities from reflections and rotationsGet 3 of 4 questions to level up!
Trig values of special anglesGet 3 of 4 questions to level up!

Inverse trigonometric functions

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Evaluate inverse trig functionsGet 3 of 4 questions to level up!

Quiz 1

Level up on the above skills and collect up to 320 Mastery points

Law of sines

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Solve triangles using the law of sinesGet 3 of 4 questions to level up!

Law of cosines

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Solve triangles using the law of cosinesGet 3 of 4 questions to level up!

Solving general triangles

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General triangle word problemsGet 3 of 4 questions to level up!

Sinusoidal equations

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Solve sinusoidal equations (basic)Get 3 of 4 questions to level up!
Solve sinusoidal equationsGet 3 of 4 questions to level up!

Sinusoidal models

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Interpret solutions of trigonometric equations in contextGet 3 of 4 questions to level up!
Sinusoidal models word problemsGet 3 of 4 questions to level up!

Angle addition identities

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Using the trig angle addition identitiesGet 3 of 4 questions to level up!

Using trigonometric identities

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Find trig values using angle addition identitiesGet 3 of 4 questions to level up!

Quiz 2

Level up on the above skills and collect up to 720 Mastery points

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Unit test

Level up on all the skills in this unit and collect up to 1300 Mastery points!

About this unit

Knowing trig identities is one thing, but being able to prove them takes us to another level. In this unit, we'll prove various trigonometric identities and define inverse trigonometric functions, which allow us to solve trigonometric equations.