Question

tìm x,y,z

\(\left(2x-1\right)^2+\left(y-2\right)^2+\left(z-3\right)^2=0\)

Answer 1

\(\left[{}\begin{matrix}\left(2x-1\right)^2=0\\\left(y-2\right)^2=0\\\left(z-3\right)^2=0\end{matrix}\right.\Leftrightarrow\left[{}\begin{matrix}2x-1=0\\y-2=0\\z-3=0\end{matrix}\right.\Leftrightarrow\left[{}\begin{matrix}x=0,5\\y=2\\z=3\end{matrix}\right.\)