Evaluate ∂w∂u{“version”:”1.1″,”math”:”∂w∂u”}at…

Evaluate ∂w∂u{“version”:”1.1″,”math”:”∂w∂u”}at u,v=5,3{“version”:”1.1″,”math”:”u,v=5,3″} for the function wx,y,z=xz+yz-z2{“version”:”1.1″,”math”:”wx,y,z=xz+yz-z2″}where x=uv{“version”:”1.1″,”math”:”x=uv”}, y=uv{“version”:”1.1″,”math”:”y=uv”} and z=u{“version”:”1.1″,”math”:”z=u”}.