I Can't Understand dy/dx when you throw in "u"
I just have absolutely no clue exactly what goes on. My prof. only explained derivatives as what you get when you use the power rule, and that dy/dx is just a fancy term for derivative. So then how in the fuck are you supposed to get "u" in there if dy/dx means the exact same thing as derivative??? This guy isn't a good teacher at all and my textbook isn't helping any. Any help would be greatly appreciated.
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