Question

ai viết giúp mình cái đáp án với!!! đáp án thôi nhé, o cần giải đâu

Answer 1

1) a. A=\(\dfrac{1}{2}\)

b) B=\(\dfrac{1}{x-1}\)

c) x=\(\left\{0;2;-2;4\right\}\)

2) a).A=\(\dfrac{2\left(x+5\right)}{\left(x-1\right)}\)

b) \(\dfrac{-62}{5}\)

c) x\(\ge-3\)

3) a) A=\(\dfrac{x-4}{x-2}\)

b) x=\(\dfrac{11}{2}\)

c) x>3=\(\left\{4;5;6;...\right\}\)

4) a) M=\(\dfrac{x+1}{x+2}\)

b) x=3

c)M>M²

5) a) -1

b)\(\dfrac{x\left(1-x\right)}{x+2}\)