help me ^.^
Cho $x,y,z\in $[0;1].Tìm GTLN:P=$\frac{x^{2}+2}{y^{2}+1}+\frac{y^{2}
+2}{z^{2}+1}+\frac{z^{2}+2}{x^{2}+1}$
GTLN, GTNN
help me ^.^
Cho $x,y,z\in $[0;1].Tìm GTLN:P=$\frac{x^{2}+2}{y^{2}+1}+\frac{y^{2}}{z^{2}+1}+\frac{z^{2}+2}{x^{2}+1}$
GTLN, GTNN
help me ^.^
Cho $x,y,z\in $[0;1].Tìm GTLN:P=$\frac{x^{2}+2}{y^{2}+1}+\frac{y^{2}
+2}{z^{2}+1}+\frac{z^{2}+2}{x^{2}+1}$
GTLN, GTNN