All High School Math Resources
Example Questions
Example Question #3 : Trigonometric Identities
Simplify .
Possible Answers:
Correct answer:
Explanation:
To simplify , break them into their SOHCAHTOA parts:
.
Notice that the opposite's cancel out, leaving .
Example Question #11 : Trigonometric Identities
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 .
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