# High School Math : Trigonometric Functions

## Example Questions

### Example Question #1 : Trigonometric Functions

Which of the following is not in the range of the function ?

Explanation:

The range of the function  is all numbers between  and  (the sine wave never goes above or below this).

Of the choices given,  is greater than  and thus not in this range.

### Example Question #2 : Trigonometric Functions

Simplify the function below:

Explanation:

We need to use the following formulas:

a)

and

b)

We can simplify as follows: