Question Number 36174 by prof Abdo imad last updated on 30/May/18
$${find}\:{lim}_{\left({x},{y}\right)\rightarrow\left(\mathrm{0},\mathrm{0}\right)} \:\:\:\frac{\mathrm{1}−{cos}\left(\sqrt{{xy}}\right)}{{y}} \\ $$
find-lim-x-y-0-0-1-cos-xy-y-