I,1,Tìm giá trị nhỏ nhấtD|x-2|+|x-9|+|x+1945|II,Tìm x,y,z1,|x-2|-|2x+3|-x2 2,|x-2|-|2x-3|-x23,|x-7|+2x+56 4,left(3x-5right)^{2006}+left(y^2-1right)^{2008}+left(x-2right)^{2100}05,||x+3|-11|2 6,2009-|x-2009|x7,left(2x-2right)^{2008}+left(y-frac{2}{5}right)^{2008}+text{|}x+y-Ztext{|}0III,Tìm x,y,z varepsilonZ1,4^2-3text{|}y-3text{|}4left(2012-xright)^42,25-y^2+8left(x-2009righ...
Đọc tiếp
I,1,Tìm giá trị nhỏ nhất
D=|x-2|+|x-9|+|x+1945|
II,Tìm x,y,z
1,|x-2|-|2x+3|-x=2 2,|x-2|-|2x-3|-x=2
3,|x-7|+2x+5=6 4,\(\left(3x-5\right)^{2006}+\left(y^2-1\right)^{2008}+\left(x-2\right)^{2100}=0\)
5,||x+3|-11|=2 6,2009-|x-2009|=x
7,\(\left(2x-2\right)^{2008}+\left(y-\frac{2}{5}\right)^{2008}+\text{|}x+y-Z\text{|}=0\)
III,Tìm x,y,z \(\varepsilon\)Z
1,\(4^2-3\text{|}y-3\text{|}=4\left(2012-x\right)^4\)
2,\(25-y^2+8\left(x-2009\right)^2\)
