Should I take Calc 3 or differential equations?

The answer to this question depends on your academic goals and the requirements of your program. If you are pursuing a degree in mathematics, engineering, or a related field, then Calc 3 and differential equations are both important courses that you should consider taking. However, if you are pursuing a degree in a different field, then you may not need to take both courses. It is best to consult with your academic advisor to determine which course is best for you.