It is undefined when x=0 (y-axis), this occurs two times during one full revolution of the unit circle. Once at

or 90° and again at

or 270°.
Answer: $1,415.47
<u>Step-by-step explanation:</u>
see spreadsheet below
Answer:
1. 216 fee
2. 224 fee
3. 90 fee
4. 40 fee
Step-by-step explanation: