Nhờ mn giúp mk bài IV
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TA
29 tháng 6 2021
1. finished
2. few
3. than
4. ?
5. for
6. was tough
7. them
8. good
9. just
10. had
11. going
12. to
13. piece
14. would
15. any
16. what
17. make
18. and
19. you
20. much
DT
29 tháng 6 2021
1 left
2 few
3 than
4 sai
5 for
6 was
7 them
8 good
9 just
10 had
11 going
12 to
12 last
14 would
15 any
16 what
17 make
18 and
19 you
20 much
5 tháng 10 2023
7.
1. getting - went
2. was hoping - gave
3. was living- spent
4. started - was checking in
5. was looking - saw
6. came - was showing
7. was playing - broke
B
14 tháng 3 2021
Ta có:
4n−5⋮2n−14n−5⋮2n−1
⇒(4n−2)−3⋮2n−1⇒(4n−2)−3⋮2n−1
⇒2(2n−1)−3⋮2n−1⇒2(2n−1)−3⋮2n−1
⇒−3⋮2n−1⇒−3⋮2n−1
⇒2n−1∈{1;3}⇒2n−1∈{1;3} ( vì n∈Nn∈N )
⇒{2n−1=1<...
14 tháng 3 2021
số nguyên:
4n-5⋮2n-1
2(2n-1)-4⋮2n-1
vì 2n-1⋮2n-1
nên 2(2n-1)-4⋮2n-1
⇒2n-1∈Ư(-4)
Ư(-4)={-1;1;-2;2;4;-4}
| 2n-1 | -1 | 1 | 2 | -2 | 4 | -4 |
| n | 0 | 1 | 2 | 0 | 3 | -1 |
⇒n∈{0;1;2;3;-1}
số tự nhiên:
4n−5⋮2n−1
(4n−2)−3⋮2n−1
2(2n−1)−3⋮2n−1
vì 2n-1⋮2n-1
nên 2(2n-1)-3⋮2n-1
⇒2n-1∈Ư(-3)
Ư(-3)={1;3}
| 2n-1 | 1 | 3 |
| n | 1 | 2 |
⇒n∈{1;2}
celebrating -> celebrated
lot -> lots
Celebrating -> Celebrated
in November -> of November
tradition -> traditional
remembering -> remember
holding -> held
in a year 1621 -> in the year of 1621
dependence -> independance