Bài 1 :
Cho \(A=\dfrac{x}{\sqrt{x}-1}\\ B=\left(\dfrac{\sqrt{x}}{\sqrt{x}-1}+\dfrac{\sqrt{x}}{x-1}\right)\div\left(\dfrac{2}{x}+\dfrac{x+2}{x\left(\sqrt{x}-1\right)}\right)\)
ĐKXĐ : x > 0 ; x ≠ 1
Tìm GTNN của \(\sqrt{A}\)
Bài 2 :
Cho \(A=\dfrac{\sqrt{x}-2}{3}\\ B=\dfrac{3x+4}{x-2\sqrt{x}}+\dfrac{2}{\sqrt{x}}-\dfrac{2\sqrt{x}}{\sqrt{x}-2}\)
Cho x ∈ N , tìm GTLN của \(\sqrt{B}\)
Rewrite these sentences as directed
1. “Don’t touch this button or you will get a shock, Ha” the father said
The father asked Ha .........................................................................................................
2. This is the first time I have met this English man.
I have.............................................................................................................................
3. I don’t get a good mark today because of my laziness.
Because .............................................................................................................................
4. I can’t buy this bag because it is too expensive.
I wish .............................................................................................................................
5. The children brought the water to the picnic site.
Water .............................................................................................................................
6. My friend lived in a small village but she doesn’t any more.
My friend used ..................................................................................................................
7. This is the first time I have ever met such a pretty girl.
She is ............................................................................................................................
8. The water is too hot for me to drink.
The water isn’t ..................................................................................................................
9. The restaurant isn’t cheap enough for us to eat in
The restaurant is too ............................................................................................................
10. She can’t afford to buy that house.
That house is ..................................................................................................................
11. The water here can’t be used for drinking because it’s polluted
Because of ........................................................................................................................
Thu gọn
Rewrite these sentences as directed1. “Don’t touch this button or you will get a shock, Ha” the father saidThe father asked Ha .........................................................................................................2. This is the first time I have met this English man.I have.............................................................................................................................3. I don’t get a good mark today because of my laziness.Because .............................................................................................................................4. I can’t buy this bag because it is too expensive.I wish .............................................................................................................................5. The children brought the water to the picnic site.Water .............................................................................................................................6. My friend lived in a small village but she doesn’t any more.My friend used ..................................................................................................................7. This is the first time I have ever met such a pretty girl.She is .............................................................................................................................8. The water is too hot for me to drink.The water isn’t ..................................................................................................................9. The restaurant isn’t cheap enough for us to eat inThe restaurant is too ............................................................................................................10. She can’t afford to buy that house.That house is ..................................................................................................................11. The water here can’t be used for drinking because it’s polluted.Because of ........................................................................................................................