Chương III - Hệ hai phương trình bậc nhất hai ẩn
Các câu hỏi tương tự
a)\(\left\{{}\begin{matrix}2x+\left|y\right|=3\\x-y=6\end{matrix}\right.\)
b)\(\left\{{}\begin{matrix}\sqrt{3}x+y=\sqrt{2}\\\sqrt{3}x-\sqrt{2}y=-1\end{matrix}\right.\)
c)\(\left\{{}\begin{matrix}2\sqrt{x+3}+\sqrt{y^2-4y+4}=2\\\sqrt{x+3}-3\left|2-y\right|=1\end{matrix}\right.\)
a)left{{}begin{matrix}sqrt{2}x-sqrt{3}y1x+sqrt{3}ysqrt{2}end{matrix}right.
b)left{{}begin{matrix}x-2sqrt{2}ysqrt{5}sqrt{2}x+y1-sqrt{10}end{matrix}right.
c)left{{}begin{matrix}left(sqrt{2}-1right)x-ysqrt{2}x+left(sqrt{2}+1right)y1end{matrix}right.
d)left{{}begin{matrix}sqrt{3}x-sqrt{2}y1sqrt{2}x+sqrt{3}ysqrt{3}end{matrix}right.
Đọc tiếp
a)\(\left\{{}\begin{matrix}\sqrt{2}x-\sqrt{3}y=1\\x+\sqrt{3}y=\sqrt{2}\end{matrix}\right.\)
b)\(\left\{{}\begin{matrix}x-2\sqrt{2}y=\sqrt{5}\\\sqrt{2}x+y=1-\sqrt{10}\end{matrix}\right.\)
c)\(\left\{{}\begin{matrix}\left(\sqrt{2}-1\right)x-y=\sqrt{2}\\x+\left(\sqrt{2}+1\right)y=1\end{matrix}\right.\)
d)\(\left\{{}\begin{matrix}\sqrt{3}x-\sqrt{2}y=1\\\sqrt{2}x+\sqrt{3}y=\sqrt{3}\end{matrix}\right.\)
Giải hệ phương trình:
1, left{{}begin{matrix}x^2+1+y^2+xyyx+y-2frac{y}{1+x^2}end{matrix}right.
2, left{{}begin{matrix}x^3+8y^3-4xy^212x^4+8y^4-2x-y0end{matrix}right.
3, left{{}begin{matrix}x^2+y^2frac{1}{5}4x^2+3x-frac{57}{25}-yleft(3x+1right)end{matrix}right.
4, left{{}begin{matrix}sqrt{12-y}+sqrt{yleft(12-xright)}12x^3-8x-12sqrt{y-2}end{matrix}right.
5, left{{}begin{matrix}left(1-yright)sqrt{x-y}+x2+left(x-y-1right)sqrt{y}2y^2-3x+6y+12sqrt{x-2y}-sqrt{4x-5y-3}end{matrix}right.
Đọc tiếp
Giải hệ phương trình:
1, \(\left\{{}\begin{matrix}x^2+1+y^2+xy=y\\x+y-2=\frac{y}{1+x^2}\end{matrix}\right.\)
2, \(\left\{{}\begin{matrix}x^3+8y^3-4xy^2=1\\2x^4+8y^4-2x-y=0\end{matrix}\right.\)
3, \(\left\{{}\begin{matrix}x^2+y^2=\frac{1}{5}\\4x^2+3x-\frac{57}{25}=-y\left(3x+1\right)\end{matrix}\right.\)
4, \(\left\{{}\begin{matrix}\sqrt{12-y}+\sqrt{y\left(12-x\right)}=12\\x^3-8x-1=2\sqrt{y-2}\end{matrix}\right.\)
5, \(\left\{{}\begin{matrix}\left(1-y\right)\sqrt{x-y}+x=2+\left(x-y-1\right)\sqrt{y}\\2y^2-3x+6y+1=2\sqrt{x-2y}-\sqrt{4x-5y-3}\end{matrix}\right.\)
\(\left\{{}\begin{matrix}\left(\sqrt{5}+2\right)x+y=3-\sqrt{5}\\2y-x=6-2\sqrt{5}\end{matrix}\right.\)
giải các hệ phương trình
a)\(\left\{{}\begin{matrix}-x+2y=6\\5x-3y=5\end{matrix}\right.\)
b)\(\left\{{}\begin{matrix}\dfrac{1}{3}x+\dfrac{1}{4}y-2=0\\5x-y=11\end{matrix}\right.\)
c)\(\left\{{}\begin{matrix}2\sqrt{3x}-\sqrt{5y}=2\sqrt{6}-\sqrt{15}\\3x-y=3\sqrt{2}-\sqrt{3}\end{matrix}\right.\)
\(\left\{{}\begin{matrix}\sqrt{y^2-7x-6}-\sqrt[3]{y\left(x-6\right)}=1\\\sqrt{2\left(x-y\right)^2+6x-2y+4}-\sqrt{y}=\sqrt{x+1}\end{matrix}\right.\)
Giải hệ pt:
a)left{{}begin{matrix}x^2+y^2+x+y18xleft(x+1right).yleft(y+1right)72end{matrix}right. b) left{{}begin{matrix}frac{1}{x}+frac{1}{y+1}13y-1xyend{matrix}right. c)left{{}begin{matrix}2x+3yxy+5frac{1}{x}+frac{1}{y+1}1end{matrix}right.
d)left{{}begin{matrix}sqrt{frac{x}{y}}-3sqrt{frac{y}{x}}2x-y+xy1end{matrix}right. e)left{{}begin{matrix}xy+x+yx^2-2y^2xsqrt{2y}-ysqrt{x-1}2x-2yend{matrix}right.
HELP ME :((
Đọc tiếp
Giải hệ pt:
a)\(\left\{{}\begin{matrix}x^2+y^2+x+y=18\\x\left(x+1\right).y\left(y+1\right)=72\end{matrix}\right.\) b) \(\left\{{}\begin{matrix}\frac{1}{x}+\frac{1}{y+1}=1\\3y-1=xy\end{matrix}\right.\) c)\(\left\{{}\begin{matrix}2x+3y=xy+5\\\frac{1}{x}+\frac{1}{y+1}=1\end{matrix}\right.\)
d)\(\left\{{}\begin{matrix}\sqrt{\frac{x}{y}}-3\sqrt{\frac{y}{x}}=2\\x-y+xy=1\end{matrix}\right.\) e)\(\left\{{}\begin{matrix}xy+x+y=x^2-2y^2\\x\sqrt{2y}-y\sqrt{x-1}=2x-2y\end{matrix}\right.\)
HELP ME :((
Giải hệ phương trình:
a) \(\left\{{}\begin{matrix}x\sqrt{y}+y\sqrt{x}=30\\x\sqrt{x}+y\sqrt{y}=35\end{matrix}\right.\)
b) \(\left\{{}\begin{matrix}x+xy+y=2+3\sqrt[]{2}\\x^2+y^2=6\end{matrix}\right.\)
Giải hệ phương trình
a. \(\left\{{}\begin{matrix}\left(2-\sqrt{3}\right)x-3y=2+5+\sqrt{3}\\4x+y=4-2\sqrt{x}\end{matrix}\right.\)
b. \(\left\{{}\begin{matrix}x\sqrt{2}-y\sqrt{3}=1\\x+y\sqrt{3}=2\end{matrix}\right.\)