Rút gọn các biểu thức
1 A= ($\frac{2}{√x+3}$ + $\frac{1}{√x-3}$ ) ×(x-9)
2 B= ($\frac{√x}{√x-2}$ + $\frac{√x}{√x+2}$) × $\frac{x-4}{√9x}$
3 C= ($\frac{1}{x-4}$- $\frac{1}{x+4√x+4}$) × $\frac{x+2√x}{√x}$
4 D= $\frac{x√x+1}{x-1}$- $\frac{x-1}{√x+1}$ https://hoidap247.com/static/img/icon-send.png
5 E= ( $\frac{1}{x-√x}$+ $\frac{1}{√x-1}$ ) ÷ $\frac{√x}{x-2√x+1}$
6 H= $\frac{x}{√x-1}$ $\frac{2x-√x}{x-√x}$
7 G= $\frac{√3-√6}{1-√2}$- $\frac{2-√8}{1+√2}$ -$\frac{3}{√3}$
Loga
Sinh Học lớp 12
