Question Number 192630 by Engr_Jidda last updated on 23/May/23
$${z}={xy}−\mathrm{5}{x}+\mathrm{2}{y}.\:{find}\:\frac{{dz}}{{dx}}\:{and}\:\frac{{dz}}{{dy}}\:{at}\left(\mathrm{2},\mathrm{4}\right) \\ $$
z-xy-5x-2y-find-dz-dx-and-dz-dy-at-2-4-