Vẽ mầm bùn NL:Sao` cacban` khinh t đ thấp v :((

Phương trình lượng giác : $\frac{1}{sin²x}$ =2

4 Nam. A new computer since he sold the old one last month .. ( not buy) 5 / .......... You ( finish) Your repot yet? 6/ my last birthday war the woret day l.......... (Ever have) 7/What can you see in the picture 8/choose the word whose main stress is placed differently from the others. A / friendllness B/ primary C/ tropical D/ correspond 9/ they were impressed by the ....……………(friend) of the local A/ friends B/ frendly C/friendllness D/ friendship Giúp em vZ

Cho 100ml dd gồm HCl 1M và HNO3 2M tác dụng vừa đủ với V ml dd NaOH 2M. Tính V

vẽ cả hình cho mk ạ ai nhanh nhất mk cho hay nhất ạ

Bài tập exercises about reported speech nha

Tìm X để x-1 /3 nguyên (thuộc z)

4. Are you ever sorry that you are poor? Have you ever………………………………………………………………………….? 5. Lan never visits the citadel in Hue. I wish………………………………………………………………………………… 8. It’s a pity that my father has to work on the weekends. If only………………………………………………………………………………… 9. We are sorry that we won’t be able to help you. We wish……………………………………………………………………………… 10. They are sorry that they don’t correspond very often. They wish…………………………………………………………………………… 12. He wants to make a great fortune. He wishes…………………………………………………………………………… 14. You are making a lot of noise. I wish…………………………………………………………………………………… 17. It’s a shame I can’t make it to the sales this weekend! If only……………………………………………………………………………… 18. I regret not buying that dress. I wish …………………………………………………………………………................ 19. It’s a pity I sold that old painting I wish …………………………………………………………………………………… 23. It’s a pity that you were not here last week. I wish…………………………………………………………………………… 24. Lan regrets speaking Hoa to lend her 20$. Lan wishes……………………………………………………………………………… 26.Please don't tell anyone about it. - I wish you ............................................................................................................

giúp mình với ko cần vẽ hình nhé

thực hiện phép tính (a+b).(a-b)-(a-b).(a^2+ab+b^2)+2a^2+b^2