MA 180 is a prerequisite for MA 181, not MA 160. Do I have to take MA 105 before MA 180?
Yes. MA 105 covers the trigonometry you will need to know for MA 180. A grade of C or better in MA 103 and MA 105, an appropriate score on the mathematics assessment test, or consent of the department is required for you to take MA 180. You can take MA 105 during the first part of the semester you are taking MA 180 with special permission from the department.