Question Number 11565 by Nayon last updated on 28/Mar/17
$${if}\:\frac{{dy}}{{dx}}={p}\:\:,{then}\:{why}\:{dy}={pdx}? \\ $$
Answered by mrW1 last updated on 28/Mar/17
$${if}\:\frac{{dy}}{{dx}}={p}\Rightarrow{y}={px} \\ $$$$\Rightarrow{dy}={pdx} \\ $$