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### Course: Trigonometry > Unit 4

Lesson 1: Inverse trigonometric functions- Intro to arcsine
- Intro to arctangent
- Intro to arccosine
- Evaluate inverse trig functions
- Restricting domains of functions to make them invertible
- Using inverse trig functions with a calculator
- Inverse trigonometric functions review
- Trigonometric equations and identities: FAQ

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# Intro to arcsine

Sal introduces arcsine, which is the inverse function of sine, and discusses its principal range. Created by Sal Khan.

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