“Why do we have to learn this?” Every teacher has heard a student ask this question. It is often followed with, “When will I ever use this?”
Perhaps anyone who was ever a student – i.e. all of us – has either uttered or thought the very same thing. And they are indeed valid questions.
After all, when will the average person need to calculate the square root of an imaginary number? Or determine how many moles of oxide are in a substance? Or explain the difference between Aristotelian and Shakespearean tragedies?
In all honesty, the answer is probably never.