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# Trigonometric Functions of Acute Angles

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In this lesson, we will learn how to find the six trigonometric function values using a right-triangle-based definition. Additionally, we will learn about the mnemonic device SOH-CAH-TOA, which is used to remember the functions sine, cosine, and tangent. The other three trigonometric functions can be found using the reciprocal identities. Additionally, we will learn about cofunction identities and how to solve equations with cofunction identities.

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