Cho biểu thức M= $\frac{\sqrt{x} }{\sqrt{x}-2 }$ - $\frac{4\sqrt{x}-4}{\sqrt{x}(\sqrt{x}-2)}$ với x > 0, x khác 4 a) Rút gọn biểu thức M b) Tính giá trị M khi x= 3+2$\sqrt{2}$ c) tìm giá trị của x để M>0

Vẽ sơ đồ chứng minh ampe kế và vôn kế

II. Supply the correct verb tense. 1. If I (have) _have__ a typewriter, I could type it myself. 2. You could make much progress if you (attend) ________________ class regularly. 3.If I (know) ________________ his telephone number, I would give it to you. 4. If you are kind to me, I (be) _______________ good to you. 5. He (come) _______________ if you waited. 6. If he (study) ________________ harder, he can pass an exam. 7. She may be late if she (not hurry) ________________. 8.What (you do) ________________ if you got fat ? 9.f you (ring) _______________ the bell, the servant would come. 10. If it (not, rain) _______________ a lot, the rice crop wouldn’t grow. III: Put the verbs in the brackets in the correct tense 1. If I had known that you were in hospital, I (visit) _____ you. 2.You would have seen my garden at its best if you (be) _____ here last week. 3. I shouldn't have believed it if I (not see) _____ it with my own eyes. 4. If he had asked you, you _____(accept) ? 5. If I (know) _____that you were coming, I'd have baked a cake. 6. If I (had) _____a map, I would have been all right. 7. The hens (not get) _____. into the house if you had shut the door. 8. If he had known that the river was dangerous, he (not try) _____ to swim across it. 9. If you (speak)_____more slowly, he might have understood you. 10. If he had known the whole story , he (not be) _____so angry. Exercise IV: Rewrite these sentences by using the condition sentence: 1/ She can’t be employed because she doesn’t have a college degree. ® If _____________________________________________ 2/ I don’t have enough money. I can’t go on a long holiday this year. ® If ______________________________________________ 3/ He is very slow, so we won’t give his such an important task. ® ______________________________________________ 4/ I’ll have to work this Sunday, so I shan’t join your picnic. ® If ______________________________________________ 5/ I didn’t have an umbrella with me so I got wet. ®I wouldn’t______________________________________________ 6/ I’ll call the police if you don’t leave me alone. ®Unless______________________________________________ 7/In the snowy weather we don’t go to school. ®If______________________________________________

B1: Tính bằng 2 cách C1: 9.5-(3.6+1.2) C2:6.5-1.5-2.5

Đóng vai Trương Sinh kể lại " Chuyện người con gái Nam Xương" của Nguyễn Dữ .

Theo tác giả lời cảm ơn và xin lỗi có những giá trị gì? Đoạn văn trên liên quan đến phương châm hội thoại nào?

Giải giúp em bài 2,3 vs ạ e đag cần gấp ạ🥺

Phân tích thành nhân tử `x^4 + 6x^3 + 7x^2 - 6x + 1`

Cho ΔABC có góc A=90 độ, AB = 7cm, AC= 2cm. M là trung điểm của BC. a) Tính độ dài trung tuyến AM b) Vẽ MH vuông góc với AB; MK vuông với AC . Tứ giác AHMK là hình gì? Vì sao?

Giúp mình câu 2 đầy đủ nha Mơn mn nhiều