you are pic send me please có nghĩa là gì
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postcard: nghĩa là bưu thiếp ( vì postcard viết không cách nên là một từ nhé)
1 ....... taking this novel back for me?
2 ....... sending this e-mail to me tomorrow?
3 ...... showing me around the town?
4 ...... turning down the radio?
5 She asked him to give her another glass of wine
Do n+3\(⋮\)n+3 (*) => (n+3)2\(⋮\)n+3 hay n2+6n+9\(⋮\)n+3
=> n2+6n+9-(n2-7)\(⋮\)n+3 hay 6n+16\(⋮\)n+3
Từ (*) => 6n+18\(⋮\)n+3
=> 6n+18-(6n+16)\(⋮\)n+3 hay 2\(⋮\)n+3
=> n+3 \(\in\){-2;-1;1;2}
Vậy n \(\in\){1;2;4;5}
Ta có: \(n^2-7⋮n+3\Leftrightarrow n^2-9+2⋮n+3\Leftrightarrow\left(n-3\right)\left(n+3\right)+2⋮n+3\)
\(\Rightarrow\)\(2⋮n+3\)
Vậy n+3 là Ước của 2
Ta có bảng sau:
n+3 | 1 | 2 | -1 | -2 |
n | -2 | -1 | -4 | -5 |
Vậy n=....
1. “you look tired, you should go to see the doctor”, Lan said
ð Lan said that I looked tired , I should go to see the doctor
2. “Come in, please”, the sale man said
ð the saleman told me to come in.
3. My grandfather told me, “Can you send me this letter?”
ð My grandmother told me to send her that letter.
4. “Don’t touch in anything here”, the old man said
ð The old man told me not to touch in anything there
5. “Buy me some stamps, Hoa”, Lan said
ð Lan told hoa to buy her some stamps
6. “Don’t make too much noise, children”, he said
ð He told the children not to make too much noise.
7. “Switch off the radio” , he said to her
ð He told her to switch off the radio.
8. “Shut the door, Tom”, she said
ð She told Tom to shut the door.
9. “Please pay at the desk”, said the assistant to us
ð The assistant asked us to pay at the desk.
10. “Lend him your dictionary for a moment, Lan”, I said
ð I told Lan to lend him her dictionary for a moment.
11. “Open your bag please”, he said
ð He asked me to open my bag.
12. “Don’t touch this switch, Tom”, I said
ð I told Tom not to touch that switch.
13 “Fill up this form and send it by post”, the secretary said to me
The secretary told me to fill up that form and send it by past.
Bn hỏi câu gì kì quái vậy
viết sai rồi