\(\sqrt{\left(2x-\sqrt{16}\right)^2}+\left(y^2.64\right)^2+lx+y+zl=0\)
\(\Rightarrow\sqrt{2x-4}+8y^4+lx+y+zl=0\)
\(\sqrt{2x-4};8y^4;lx+y+zl\ge0\)mà \(\sqrt{2x-4}+8y^4+lx+y+zl=0\)
\(\Rightarrow\sqrt{2x-4}=8y^4=lx+y+zl=0\)
=>2x-4=y4=lx+y+zl=0
=>x=2;y=0;z=-2
Vậy x=2;y=0;z=-2
Cho \(x,y,z\in Q\); \(x^2+y^2+z^2=3\); \(x=\sqrt{y\left(2x-y\right)}\); \(y=\sqrt{z\left(2y-z\right)}\); \(z=\sqrt{x\left(2z-x\right)}\)
Chứng minh : \(\sqrt{\left(3-x^2\right)\left(3-y^2\right)\left(3-z^2\right)}=2\sqrt{2}.xyz\)
\(\sqrt{\left(x-2024\right)^2}+\left|x+y-4z\right|+y^2.\sqrt{5}=0\left(x,y,z\inℝ\right)\)
TÌM x , y, z
Tìm x;y;z biết \(\sqrt{\left(x-\sqrt{2}\right)^2}+\sqrt{\left(y+\sqrt{2}\right)^2}+\left|x+y+z\right|=0\)
Tìm các số x,y,z thỏa mãn đẳng thức:\(\sqrt{\left(x-\sqrt{2}\right)^2}+\sqrt{\left(y+\sqrt{2}\right)^2}+\left|x+y+z\right|=0\)| = 0
Tìm x,y,z
\(\sqrt{\left(x-\sqrt{2}\right)^2}+\sqrt{\left(x-\sqrt{2}\right)^2}+\left(x+y+z=0\right)\)
Cho các số dương x,y,z . Chứng minh BĐT :
\(\frac{\left(x+1\right)\left(y+1\right)^2}{3\sqrt[3]{z^2x^2}+1}+\frac{\left(y+1\right)\left(z+1\right)^2}{3\sqrt[3]{x^2y^2}+1}+\frac{\left(z+1\right)\left(x+1\right)^2}{3\sqrt[3]{y^2z^2}+1}\ge x+y+z+3\)
ko bt lm thi đừng CMT tầm bậy nhé !
tìm x y z thỏa mãn:M=\(\sqrt{\left(x-\sqrt{2}\right)^2}+\sqrt{\left(y+\sqrt{2}\right)^2}+\left|x+y+z\right|=0\)
giúp mik vs
1.Tìm các số x, y, z thỏa mãn đẳng thức\(\sqrt{\left(x-\sqrt{2}\right)^2}+\sqrt{\left(y+\sqrt{2}\right)^2}+\left|x+y+z\right|=0\)
2.Tìm x,y,z biết : \(x+y=x\div y=3\left(x-y\right)\)
\(\sqrt{\left(x-2\right)^2}+\sqrt{\left(y+2\right)^2}+\left|x+y+z\right|=0\)
tim x,y,z
