tìmx,y,z biết
\(\left(x-\frac{1}{5}\right).\left(y+\frac{1}{2}\right).\left(z-3\right)=0\)
va \(x+1=y+2=z+3\)
a) \(\frac{y+z+1}{x}=\frac{x+z+2}{y}=\frac{x+y-3}{z}=\frac{1}{x+y+z}\)
b) \(\frac{x}{y+z+1}=\frac{y}{x+z+2}=\frac{z}{x+y-2}=x+y+z\)
Tìm x ;y;z
\(tìmx;y;z, biết :\frac{x}{3}=\frac{y}{5}=\frac{z}{7} và 2x+3y-z=-14\)
Tìm x , y , z nếu :
a)\(\frac{x+y+1}{x}=\frac{x+z+2}{y}=\frac{x+y-3}{z}=\frac{1}{x+y+z}\)
b)\(\frac{x-1}{2}=\frac{y-2}{3}=\frac{z-3}{4}\)và 2x+3y-z=50
Tìm x, y, z biết: \(\frac{y+z+1}{x}=\frac{x+z+2}{y}=\frac{x+y-3}{z}=\frac{1}{x+y+z}\)
tìm x,y,z biết : \(\frac{y+z+1}{x}=\frac{x+z+2}{y}=\frac{x+y-3}{z}=\frac{1}{x+y+z}\)
Tìm x,y,z
\(\frac{y+z+1}{x}=\frac{x+z+2}{y}=\frac{x+y-3}{z}=\frac{1}{x+y+z}\)
Tìm x;y;z biết:
a) \(\frac{y+z+1}{x}=\frac{y+x+2}{y}=\frac{x+y-3}{z}=\frac{1}{x+y+z}\)
b) \(\frac{x}{y+z+1}=\frac{y}{z+x+1}=\frac{z}{x+y+1}=x+y+z\)
Chỉ cần làm phần b thoy cx đc !!!!!!
tìm x y z biết
\(\frac{y+z+1}{x}=\frac{x+z+2}{y}=\frac{x+y-3}{z}=\frac{1}{x+y+z}\)