Module $1-$Homework #$1$

$(referto$ the solved example problems $in$ the first

Order ODEs lecture note$)$

Solve:

$(1+x)dy-ydx=0=>\frac{dy}{y}=\frac{dx}{(1+x)},(separationof$ variables$)$

$y^{\text{'}}=-\frac{x}{y}$