Trong các số sau số nào chia hết cho 2, cho 5, cho 10

a,3^{4n+1_{+1 (n∈N)}}

b, 2^{4n+1_{-2 (n∈N)}}

^{_{c, 2}2n_{+4(n∈N,N>2)}}

^{_{d, 9}4n_{-6(n∈N,n>1)}}

Ex1:Rewrite these senteces by using because:

1.Nobody can do this test because of ít difficulty

2.We spent the whole day in the garden because of lovely weather

3.He can not go to school today because of hí toothace

4.Because of having an accident, these student arrrived late

5.She must stay in bed because of her illness