High School Math : Trigonometric Identities

Study concepts, example questions & explanations for High School Math

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Example Questions

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Example Question #121 : Trigonometry

Simplify .

Possible Answers:

This is the most simplified version.

Correct answer:

Explanation:

Break down  into SOHCAHTOA to solve:

 and .

Therefore, . Note that the opposite's cancel out, leaving , which is the same as .

Example Question #1 : Using Identities Of Inverse Operations

Possible Answers:

Correct answer:

Explanation:

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