- #1
Gza
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Ever since my first physics class, I've noticed many apparently sacred rules of calculus being broken before my innocent eyes. since calc I i was told that (dy/dx) was not a ratio, so don't treat it like one. Yet when solving various simple differential equations, it's common to separate and integrate the little differentials by "multiplying through" by the denominator of the dy/dx ratio (yeah i said ratio, so sue me ). I was wondering where the mathematical basis for this comes from.
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