Các câu hỏi tương tự
Giải hpt bằng pp thế :
\(\hept{\begin{cases}x\sqrt{5}-\left(1+\sqrt{3}\right)y=1\\\left(1-\sqrt{3}\right)x+y\sqrt{5}=1\end{cases}}\)
Giải hpt: \(\hept{\begin{cases}\left(x+y\right)^2+\sqrt{3\left(x+y\right)}=\sqrt{2\left(x+y+1\right)}+4\\\left(x^2+y-2\right)\sqrt{2x+1}=x^3+2y-5\end{cases}}\)
Giải HPT \(\hept{\begin{cases}\sqrt{x+1}-\sqrt[3]{y-1}=-1\\2\sqrt{x+1}+\sqrt[5]{y-1}=9\end{cases}\left(4\right)}\)
Giải HPT \(\hept{\begin{cases}\left(x-y\right)^2+4=3y-5x+2\sqrt{\left(x+1\right)\left(y-1\right)}\\\frac{3xy-5y-6x+11}{\sqrt{x^3+1}}=5\end{cases}}\)
1,hept{begin{cases}sqrt{x}+sqrt{y}3sqrt{x+5}+sqrt{y+3}5end{cases}}2,hept{begin{cases}xleft(x+y+1right)-30left(x+yright)^2-frac{5}{x^2}+10end{cases}}3,hept{begin{cases}xy+x+yx^2+2y^2xsqrt{2y}-ysqrt{x-1}2x-2yend{cases}}4,hept{begin{cases}xy+x+17yx^2y^2+xy+113y^2end{cases}}5,hept{begin{cases}2yleft(x^2-y^2right)3xxleft(x^2+y^2right)10yend{cases}}
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\(1,\hept{\begin{cases}\sqrt{x}+\sqrt{y}=3\\\sqrt{x+5}+\sqrt{y+3}=5\end{cases}}\)
\(2,\hept{\begin{cases}x\left(x+y+1\right)-3=0\\\left(x+y\right)^2-\frac{5}{x^2}+1=0\end{cases}}\)
\(3,\hept{\begin{cases}xy+x+y=x^2+2y^2\\x\sqrt{2y}-y\sqrt{x-1}=2x-2y\end{cases}}\)
\(4,\hept{\begin{cases}xy+x+1=7y\\x^2y^2+xy+1=13y^2\end{cases}}\)
\(5,\hept{\begin{cases}2y\left(x^2-y^2\right)=3x\\x\left(x^2+y^2\right)=10y\end{cases}}\)
Giải các hệ phương trình:
\(\hept{\begin{cases}2\left(x+y\right)+3\left(x-y\right)=4\\x+y+2\left(x-y\right)=5\end{cases}}\)
b ) \(\hept{\begin{cases}\sqrt{3}-\sqrt{2}y=1\\\sqrt{2}x+\sqrt{3}y=\sqrt{3}\end{cases}}\)
Giải hpt
a/\(\hept{\begin{cases}\left|x\right|+4\left|y\right|=18\\3\left|x\right|+\left|y\right|=10\end{cases}}\)
b/ \(\hept{\begin{cases}3\sqrt{x}+2\sqrt{y}=16\\2\sqrt{x}-3\sqrt{y}=-11\end{cases}}\)
GIẢI hpt:
\(a,\hept{\begin{cases}\frac{1}{\sqrt{x}}+\sqrt{2.\frac{1}{y}}=2\\\frac{1}{\sqrt{y}}+\sqrt{2.\frac{1}{x}}=2\end{cases}}\)
\(b,\hept{\begin{cases}x+y+2=4\\2xy-x^2=16\end{cases}}\)
\(c,\hept{\begin{cases}x\left(x-1\right)\left(x-2y\right)=0\\\frac{1}{x}-\frac{1}{y}=\frac{4}{3}\end{cases}}\)
Giải hệ phương trình:1) hept{begin{cases}sqrt[3]{x-y}sqrt{x-y}x+ysqrt{x+y+2}end{cases}}2) hept{begin{cases}x-frac{1}{x}y-frac{1}{y}2yx^3+1end{cases}}3) hept{begin{cases}left(x-yright)left(x^2+y^2right)13left(x+yright)left(x^2-y^2right)25end{cases}left(x;yin Rright)}4) hept{begin{cases}3yfrac{y^2+2}{x^2}3xfrac{x^2+2}{y^2}end{cases}}5) hept{begin{cases}x+y-sqrt{xy}3sqrt{x+1}+sqrt{y+1}4end{cases}left(x;yin Rright)}6) hept{begin{cases}x^3-8xy^3+2yx^2-33left(y^2+1right)end{cases}left(x;yin Rright)}7)...
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Giải hệ phương trình:
1) \(\hept{\begin{cases}\sqrt[3]{x-y}=\sqrt{x-y}\\x+y=\sqrt{x+y+2}\end{cases}}\)
2) \(\hept{\begin{cases}x-\frac{1}{x}=y-\frac{1}{y}\\2y=x^3+1\end{cases}}\)
3) \(\hept{\begin{cases}\left(x-y\right)\left(x^2+y^2\right)=13\\\left(x+y\right)\left(x^2-y^2\right)=25\end{cases}\left(x;y\in R\right)}\)
4) \(\hept{\begin{cases}3y=\frac{y^2+2}{x^2}\\3x=\frac{x^2+2}{y^2}\end{cases}}\)
5) \(\hept{\begin{cases}x+y-\sqrt{xy}=3\\\sqrt{x+1}+\sqrt{y+1}=4\end{cases}\left(x;y\in R\right)}\)
6) \(\hept{\begin{cases}x^3-8x=y^3+2y\\x^2-3=3\left(y^2+1\right)\end{cases}\left(x;y\in R\right)}\)
7) \(\hept{\begin{cases}\left(x^2+1\right)+y\left(y+x\right)=4y\\\left(x^2+1\right)\left(y+x-2\right)=y\end{cases}\left(x;y\in R\right)}\)
8) \(\hept{\begin{cases}y+xy^2=6x^2\\1+x^2y^2=5x^2\end{cases}}\)