Calculuser
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dx>0 or dx<0 ??
I've just registered in this forum and I wanted to ask my question right away.I'm 18 and I love studying Calculus.While I was studying at Derivative part of it, I've realized something at Leibniz's Notation of Derivative (\frac{dy}{dx}).
It's equal to
lim \frac{Δy}{Δx}=\frac{dy}{dx}
Δx→0
My question is if we take the limit as Δx→0 (Δx→0^{+} and Δx→0^{-})
I think that's why dx must be both dx>0 and dx<0
Is it right??
Thanks..
I've just registered in this forum and I wanted to ask my question right away.I'm 18 and I love studying Calculus.While I was studying at Derivative part of it, I've realized something at Leibniz's Notation of Derivative (\frac{dy}{dx}).
It's equal to
lim \frac{Δy}{Δx}=\frac{dy}{dx}
Δx→0
My question is if we take the limit as Δx→0 (Δx→0^{+} and Δx→0^{-})
I think that's why dx must be both dx>0 and dx<0
Is it right??
Thanks..
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