Solution: Show that it is possible to solve the


Question: Show that it is possible to solve the equations

\[\left\{\begin{aligned} x u^{2}+y z v+x^{2} z &=3 \\ x y v^{3}+2 z u-u^{2} v^{2} &=2 \end{aligned}\right.\]

for \((u, v)\) as a function of \((x, y, z)\) in an open set containing the point \((1,1,1,1,1)\). If \((u, v)=g(x, y, z)\), find \(\mathrm{D} g(1,1,1)\) and hence find approximate values for \((u, v)\) when \((x, y, z)=(1.1,1,0.9)\).

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