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# Unit 9: Trigonometry

1,200 possible mastery points

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## About this unit

Learn about the definition of the basic trigonometric functions (sin(x), cos(x), and tan(x)), and use advanced trigonometric functions for various purposes.### Practice

- Trig values of special anglesGet 3 of 4 questions to level up!

Level up on the above skills and collect up to 240 Mastery points

### Practice

- Midline of sinusoidal functions from graphGet 3 of 4 questions to level up!
- Amplitude of sinusoidal functions from graphGet 3 of 4 questions to level up!

### Practice

- Midline of sinusoidal functions from equationGet 3 of 4 questions to level up!
- Amplitude of sinusoidal functions from equationGet 3 of 4 questions to level up!

### Learn

### Practice

- Period of sinusoidal functions from graphGet 3 of 4 questions to level up!
- Period of sinusoidal functions from equationGet 3 of 4 questions to level up!

Level up on the above skills and collect up to 480 Mastery points

### Learn

### Practice

- Construct sinusoidal functionsGet 3 of 4 questions to level up!
- Modeling with sinusoidal functionsGet 3 of 4 questions to level up!

Level up on the above skills and collect up to 240 Mastery points

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Level up on all the skills in this unit and collect up to 1200 Mastery points!