Các câu hỏi tương tự
tìm x và y biết
a) \(\left|x-y-2\right|+\left|y+3\right|=0\)
b) \(\left|x-3y\right|^{2007}+\left|y+4\right|^{2008}=0\)
c) \(\left(x+y\right)^{2006}+2007\left|y-1\right|=0\)
d) \(\left|x-y-5\right|+2007\left(y-3\right)^{2008}=0\)
\(Tìm\text{x},y,z,biết\)
\(a,\left|\frac{1}{4}-x\right|+\left|x-y+z\right|+\left|\frac{2}{3}+y\right|=0\)
\(b,\left|2-x\right|+\left|3-y\right|+\left|x+y+z\right|=0\)
Tìm x; y; z :
a) \(2009-\left|x-2009\right|=x\)
b) \(\left(2x-1\right)^{2008}+\left(y-\dfrac{2}{5}\right)^{2008}+\left|x+y-z\right|=0\)
Tìm x, y, z biết:
a) \(\left|x-\frac{1}{2}\right|+\left|y+\frac{3}{2}\right|+\left|x+y-z-\frac{1}{2}\right|=0\)
b) \(\left|1-x\right|+\left|y-\frac{2}{3}\right|+\left|x+z\right|\le0\)
Tìm \(x;y;z\in Q\) biết:
a)\(\left|x+\frac{3}{7}\right|+\left|y-\frac{4}{9}\right|+\left|z+\frac{5}{11}\right|=0\)
b)\(\left|x-\frac{2}{5}\right|+\left|x+y-\frac{1}{2}\right|+\left|y-z+\frac{3}{5}\right|=0\)
c)\(\left|x+y-2,8\right|+\left|y+z+4\right|+\left|z+x-1,4\right|=0\)
Giúp mk vs.Ai làm được câu nào thì làm!
Tìm X,y,Z € Q, biết:
a)\(\left|x+\frac{1}{2}\right|+\left|y-\frac{3}{4}\right|+\left|z-1\right|=0\)
b)\(\left|x-\frac{3}{4}\right|+\left|\frac{2}{5}-y\right|+\left|x-y+z\right|=0\)
a)Tìm x,y biết
\(\left(2x-1\right)^{100}+\left(x-y\right)^{102}=0\)
b)Cho x,y thảo mãn
\(\left|x-3\right|+\left(x+y\right)^{2020}=0\)
Tính giastrij của biểu thức \(A=x^2.\left(x+y\right)^{100}\)
Tìm x biết
a)\(\frac{x+1}{x-4}>0\)
b)\(\left|x+\frac{3}{4}\right|+\left|y-\frac{1}{5}\right|+\left|x+y+z\right|=0\)
c)\(\left(x+2\right)\left(x-3\right)< 0\)
d)\(\left|x+\frac{3}{4}\right|+\left|y-\frac{2}{5}\right|+\left|z+\frac{1}{2}\right|\le0\)
Tìm x, y, z, biết :
a) \(\left|\frac{1}{2}+x\right|+\left|x+y+z\right|+\left|\frac{1}{3}+y\right|=0\)
b) \(\left|\frac{1}{12}-x\right|+\left|\frac{1}{25}-y\right|+\left|z-\frac{14}{3}\right|\le0\)