Các câu hỏi tương tự
Giai he phuong trinh: \(\hept{\begin{cases}\frac{2}{x}+\frac{5}{x+y}=2\\\frac{3}{x}+\frac{1}{x+y}=1,7\end{cases}}\)
Giai phuong trinh sau:
\(y^2-2y+3=\frac{6}{x^2+2x+4}\)
Giai phuong trinh:
\(\sqrt{x+\frac{3}{x}}=\frac{x^2+7}{2\left(x+1\right)}\)
giai phuong trinh :\(\frac{2}{x^2+4x+3}\)+\(\frac{5}{x^2+11x+24}\)+\(\frac{2}{x^2+18x+80}\)=\(\frac{9}{52}\)
\(\frac{x^2-8}{x^2-16}=\frac{1}{x+4}+\frac{1}{x-4}\)
giai phuong trinh
Giai phuong trinh
\(\hept{\begin{cases}\frac{1}{x}+\frac{2}{y}+\frac{3}{z}=1\\\frac{12}{yz}-\frac{1}{x^2}=1\end{cases}}\)
giai phuong trinh
\(\frac{1}{\sqrt{x}+\sqrt{x+1}}+\frac{1}{\sqrt{x+1}+\sqrt{x+2}}+\frac{1}{\sqrt{x+2}+\sqrt{x+3}}=1\)
Giai cac phuong trinh :
a\(\frac{12}{x-1}-\frac{8}{x+1}=1\)
b\(\frac{x^3+7x^2+6x-30}{x^3-1}=\frac{x^2-x+16}{x^2+x+1}\)
giai he phuong trinh
\(\hept{\begin{cases}\frac{2x-3}{x-2}-\frac{1}{y+2}=7\\\frac{2}{x-2}-\frac{3y+7}{y+2}=13\end{cases}}\)