- #1
helixkirby
- 15
- 0
Not a homework question, I'm just curious, I know this has been asked a few times, but what exactly is happening when you move dx over to the other side of dy/dx=f'(x), is it like the point slope form ∆y=m∆x, or is it applying the differential to both sides, I've always been told a rigorous proof was necessary to show you could "multiply by dx", could someone possibly show me a proof of it, or even just explain why it works?