Wyznacz funkcje popytu na oba dobra:
1) \(\displaystyle{ U(x_{1},x_{2})=\sqrt{x_{1}}+x_{2}}\)
2)\(\displaystyle{ U(x_{1},x_{2})=\sqrt{x_{1}}+\sqrt{x_{2}}}\)
3)\(\displaystyle{ U(x_{1},x_{2})=e^{x_{1}+x_{2}}}\)
4) \(\displaystyle{ U(x_{1},x_{2})=(x_{1}-x_{2})}\)
5) \(\displaystyle{ U(x_{1},x_{2})=ln(x^{\frac{1}{3}}_{1}x^{2}_{2})}\)