Question Number 99494 by mhmd last updated on 21/Jun/20
$${W}={f}\left({x},{y},{z}\right),{g}\left({x},{y}\right)={C}_{\mathrm{1}} \:,\:{h}\left({y},{z}\right)={C}_{\mathrm{2}} \:\:{find}\:\frac{{dw}}{{dx}}\:,\frac{{dw}}{{dy}}\:\:?\: \\ $$$$ \\ $$$${help}\:{me}\:{sir}\:{pleas}\:{i}\:{want}\:{this}\: \\ $$