user-avatar
haha0904
2 năm trước
giúp mik với ạ ngắn thui ^_^ hì hì a) 125.(-61).(-2) ³. (-1) ^2n (n ∈ N*) b) 136.(-47)+36.47 c) (-48).72+36.(-304) d) (x+1)+(x+3)+(x+5)+...+(x+98)=0 e) (x-3)+(x-2)+(x-1)+...+10+11=11 f ) x+(x+1)+(x+2)+...+2018+2019=2019
Thích Trả lời Chia sẻ

Các câu hỏi liên quan

II. Complete the sentences, using: although, despite, in spite of, however, or nevertheless. Sometimes, two answers are possible. 1. I think I did OK in my speech last night ______________ I’d had almost no sleep for 24 hours. 2. ______________ I heard the telephone ring, I didn’t answer it. 3. We enjoyed our holiday_________________ the rain. 4. _______________ he got top marks at high school, he never went to university. 5. ________ there was no electricity, I was able to read because I had a candle. 6. She failed the test _______________ she studied hard. 7. _______________ difficulties, the firemen managed to save many people who were caught in the fire. 8. Everyone thought she would accept the offer. __________________, she turned it down. 9. Carol arrived at the meeting ______________ I asked her not to be there. 10. It looks like they’re going to succeed ______________ their present difficulties. 11. ______________ it was raining heavily, he went out without a raincoat. 12. My father is very busy. ______________ , he is always willing to give a hand with the housework. 13. The sky was grey and cloudy. ______________, we went to the beach. 14. Some English words have the same pronunciation ______________ they are spell differently, for example, dear and deer. 15. I was cold and wet _____________ .Bob put on his swimming suit and went to the beach.

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