III. 

A. 

1. B

2. C

3. B

4. A

5. D

B. 

1. C

2. B

3. B

4. A

5. C

1 b c b a d

2 c b b a c nha

 ai có CT j ko ạ 

Đề dài thế này sao giải thích nhanh cho e đc

Part 1

1 C

2 B

3 D

4 C

5 B

6 A

Part 2

1 T

2 F

3 F

4 F

V

1 That old house has just been bought

2 If he doesn't take these pills, he won't be better

3 I suggest taking a train

4 Spending the weekend in the countryside is very wonderful

nhiều thật đấy

công thứ: phụ chéo

Sử dụng công thức: \(cos\alpha=sin\left(90^0-\alpha\right)\)

Lời giải:

a.

\((2-3x^2)^5=\sum\limits_{k=0}^52^k(-3x^2)^{5-k}=\sum\limits_{k=0}^52^k(-3)^{5-k}x^{10-2k}\)

b.

$10-2k=6$

$\Leftrightarrow k=2$

Hệ số gắn với $x^6$ là: \(2^2(-3)^{5-2}=-108\)

He asked me to know what the time was.

She asked me when we would meet again.

She asked him If he was crazy.

He asked me to know when they had lived.

He asked her If she would be at the party.

She asked me If I could meet her at the station.

The teacher asked me to know who knew the answer

She asked him to know why he didn't help her.

He asked me If I had seen that car.

The mother asked the twins If they had tidied up their room.

Tom asked how much that computer was

11. what the time was.

12. when they would meet again.

13. if he was crazy.

14. where they had lived.

15. if she would be at the party.

16. if I could meet her at the station.

17. who knew the answer.

18. why I didn't help her.

19. if I had seen that car.

20. if they had tidied up their room.

Bài 3:

asked how much that computer was.