Giải hệ PT sau :
\(\left\{{}\begin{matrix}\frac{x}{y}-\frac{x}{y-12}=1\\\frac{x}{x-12}-\frac{x}{y}=2\end{matrix}\right.\)
Mọi người giúp e với ạk
Giải hệ phương trình :
1, \(\left\{{}\begin{matrix}x-2y=1\\2x-y=4\end{matrix}\right.\)
2, \(\left\{{}\begin{matrix}\frac{x}{y}-\frac{y}{y+12}=1\\\frac{x}{y+12}-\frac{x}{y}=2\end{matrix}\right.\)
3, \(\left\{{}\begin{matrix}3x^2+y^2=5\\x^2-3y=1\end{matrix}\right.\)
4, \(\left\{{}\begin{matrix}\sqrt{3x-1}-\sqrt{2y+1}=1\\2\sqrt{3x-1}+3\sqrt{2y+1}=12\end{matrix}\right.\)
giải các hệ pt sau:
a) \(\left\{{}\begin{matrix}x+2y=-1\\x-y=5\end{matrix}\right.\)
b) \(\left\{{}\begin{matrix}\frac{5}{x}-\frac{6}{y}=3\\\frac{4}{x}+\frac{9}{y}=7\end{matrix}\right.\)
c) \(\left\{{}\begin{matrix}3\sqrt{x+1}+\sqrt{y-1}=1\\\sqrt{x+1}-\sqrt{y-1}=-2\end{matrix}\right.\)
d) \(\left\{{}\begin{matrix}\left|x-1\right|+y=5\\4x+3y=23\end{matrix}\right.\)
giải hpt
\(\left\{{}\begin{matrix}\frac{x}{y}-\frac{x}{y+12}=1\\\frac{x}{x-12}-\frac{x}{y}=2\end{matrix}\right.\)
Gải hệ phương trình :
\(\left\{{}\begin{matrix}\frac{x}{y}-\frac{x}{y+12}=1\\\frac{x}{y-12}-\frac{x}{y}=2\end{matrix}\right.\)
Giải hệ pt sau
a)\(\left\{{}\begin{matrix}\frac{x-12}{4}=\frac{y-9}{3}=z-1\\3x+5y-z=2\end{matrix}\right.\)
b)\(\left\{{}\begin{matrix}\frac{a+b}{6}=\frac{b+c}{7}=\frac{a+c}{8}\\a+b+c=14\end{matrix}\right.\)
Giải hệ pt
\(\left\{{}\begin{matrix}\frac{x^2}{\left(y+1\right)^2}+\frac{y^2}{\left(x+1\right)^2}=\frac{1}{2}\\3xy=x+y+1\end{matrix}\right.\)
Giải hệ phương trình :
1, \(\left\{{}\begin{matrix}\frac{2}{x}+\frac{3}{y-2}=4\\\frac{4}{x}+\frac{1}{y-2}=1\end{matrix}\right.\)
2 , \(\left\{{}\begin{matrix}\frac{2}{2x-y}-\frac{1}{x+y}=0\\\frac{3}{2x-y}-\frac{6}{x+y}=-1\end{matrix}\right.\)
3, \(\left\{{}\begin{matrix}5\left(x+2y\right)=3x-1\\2x+4=3\left(x-2y\right)-15\end{matrix}\right.\)
4, \(\left\{{}\begin{matrix}2x+y=7\\-x+4y=10\end{matrix}\right.\)
Giải hệ phương trình sau
a. \(\left\{{}\begin{matrix}x^2+y^2+2\left(x+y\right)=23\\x+y+xy=11\end{matrix}\right.\)
b. \(\left\{{}\begin{matrix}x^2+4x+y=0\\\left(x+2\right)^2+5y=16\end{matrix}\right.\)
c. \(\left\{{}\begin{matrix}x+y+\frac{1}{x}+\frac{1}{y}=5\\x^2+y^2+\frac{1}{x^2}+\frac{1}{y^2}=9\end{matrix}\right.\)