Tabara MathTime - Problema 6, ziua II
Scris: Sâm Sep 03, 2011 9:40 pm
Problema 6. Gasiti cea mai mica valoare a expresiei:
a) * $2x+3y+4z$, unde $x^{2}+y^{2}+z^{2}=1$;
b) ** $(x-y)^{2}+\left(\sqrt{2-x^{2}}-\frac{9}{y}\right)^{2}$, unde $0<x<\sqrt{2}$, $y>0$.
a) * $2x+3y+4z$, unde $x^{2}+y^{2}+z^{2}=1$;
b) ** $(x-y)^{2}+\left(\sqrt{2-x^{2}}-\frac{9}{y}\right)^{2}$, unde $0<x<\sqrt{2}$, $y>0$.