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# Unit 8: Introduction to trigonometry

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Unit test

### Learn

### Practice

- Trigonometric ratios in right trianglesGet 3 of 4 questions to level up!
- Solve for a side in right trianglesGet 3 of 4 questions to level up!
- Find trigonometric ratios using the Pythagorean theoremGet 3 of 4 questions to level up!

### Practice

- Reciprocal trig ratiosGet 5 of 7 questions to level up!
- Evaluating expressions involving trigonometric ratios of an angle when one ratio is givenGet 3 of 4 questions to level up!

Level up on the above skills and collect up to 400 Mastery points

### Learn

### Practice

- Trigonometric ratios of special anglesGet 3 of 4 questions to level up!
- Special right trianglesGet 3 of 4 questions to level up!
- Evaluating expressions of trigonometric ratios for some special anglesGet 3 of 4 questions to level up!

### Learn

### Practice

- Evaluating trigonometric ratios of complementary anglesGet 3 of 4 questions to level up!
- Solving trigonometric equations having complementary anglesGet 3 of 4 questions to level up!

Level up on the above skills and collect up to 400 Mastery points

### Learn

### Practice

- Evaluating expressions using basic trigonometric identitiesGet 3 of 4 questions to level up!
- Trigonometric identities challenge problemsGet 3 of 4 questions to level up!

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Level up on all the skills in this unit and collect up to 1,200 Mastery points!