### All High School Math Resources

## Example Questions

### Example Question #1 : Trigonometric Identities

Simplify

**Possible Answers:**

**Correct answer:**

Explanation:

. Thus:

### Example Question #1841 : High School Math

Simplify

**Possible Answers:**

**Correct answer:**

Explanation:

and

.

### Example Question #1 : Using Pythagorean Identities

Simplify .

**Possible Answers:**

**Correct answer:**

Explanation:

Remember that . We can rearrange this to simplify our given equation:

### Example Question #8 : Trigonometric Identities

Simplify:

**Possible Answers:**

This is the most simplified version.

**Correct answer:**

Explanation:

Whenever you see a trigonometric function squared, start looking for a Pythagorean identity.

The two identities used in this problem are and .

Substitute and solve.

### All High School Math Resources

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