user-avatar
lethihonglinh7622
2 năm trước
Bài 4: Rút gọn biểu thức sau: a)A= $\frac{a+b-2√ab}{√a-√b}$-$\frac{a-b}{√a+√b}$ b)B= $\frac{(√a+√b)²+4√ab}{(√a+√b)²-4√ab}$.$\frac{a-b}{(√a+√b)²}$
Thích Trả lời Chia sẻ

Các câu hỏi liên quan

Choose the correct answers. 1. I’m sure he would mind if we early. A. arrive B. arriving C. arrived D. had arrived 2. We you if we have time. A. will phone B. would phone C. phoned D. had phoned 3. If I won the lottery, I you half the money. A. gave B. had given C. will give D. would give 4. It be a pity if she married Fred. A. will B. would C. can D. may 5. If I am free on Saturday, I to the mountains. A. to go B. could go C. went D. can go 6. She a nervous breakdown if she goes on like this. A. will has B. had C. will have D. have 7. I know I’ll feel better if I smoking. A. will stop B. stop C. stopped D. had stopped 8. I could have understood him if he more slowly. A. speaks B. spoke C. had spoken D. would speak 9. He didn’t listen to the teacher. If he carefully, he will in the examination. A. had listened/ would have performed B. listened/ would perform C. listens/ will performed D. had listened/ had performed 10. If I knew his address, I round and see him. A. go B. will go C. went D. would go

2018 © Loga - Không Ngừng Sáng Tạo - Bùng Cháy Đam Mê
Loga Team