phạm diệu anh
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2026-06-09 08:23:30
1 B
2 C
3 A
2026-06-09 08:16:28
hi
2026-06-09 08:15:33
1.Bad weather prevents us go for the picnic.
2.Swimming everyday is away to keep health.
3.The movie nice that the whole family that i would expect to watch it.
4.Our school was built 20 years ago.
5.We should do exercise everyday to protection from sickness.
6.This summer, we want to go to Ha Noi for we can visit Masuoleum and Temple of Literature.
2026-06-07 08:54:10
A
2026-06-04 09:23:29
Ta có :n+3=n+2+1
Vì n+2 chia hết n+2 nên 1 chia hết n+2
Suy ra n+2=1/n+2=0
TH1:n+2=0 suy ra n=-2
TH2:n+2=1 suy ra n=-1
2026-06-04 08:48:00
tôi