Tìm giá trị của x,y,z, biết:
1) x + y + z + 8= 2\(\sqrt{x-1}\)+ 4\(\sqrt{y-2}\)+ 6\(\sqrt{z-3}\)
2) x + y + z= 2\(\sqrt{x}\)+ 2\(\sqrt{y-3}\)+ 2\(\sqrt{z}\)
3) x + y + 4= 2\(\sqrt{x}\)+ 4\(\sqrt{y-1}\)
4) \(\sqrt{x+3}\)+ \(\sqrt{y-2}+\sqrt{z-3}\)= \(\frac{1}{2}\)(x + y + z + 1)
5)\(\sqrt{x-2}+\sqrt{y+2009}+\sqrt{z-2010}=\)\(\frac{1}{2}\)(x + y + z)
\(\frac{1}{2}\)
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Đọc tiếp
Tìm giá trị của x,y,z, biết:
1) x + y + z + 8= 2\(\sqrt{x-1}\)+ 4\(\sqrt{y-2}\)+ 6\(\sqrt{z-3}\)
2) x + y + z= 2\(\sqrt{x}\)+ 2\(\sqrt{y-3}\)+ 2\(\sqrt{z}\)
3) x + y + 4= 2\(\sqrt{x}\)+ 4\(\sqrt{y-1}\)
4) \(\sqrt{x+3}\)+ \(\sqrt{y-2}+\sqrt{z-3}\)= \(\frac{1}{2}\)(x + y + z + 1)
5)\(\sqrt{x-2}+\sqrt{y+2009}+\sqrt{z-2010}=\)\(\frac{1}{2}\)(x + y + z)
\(\frac{1}{2}\)
