Question

Use Euclids division lemma to show that the cube of any positive integer is of the form 9m,9m+1,or 9m+8.

Answer 1

Here,B=9,Then,a=9m+r(q>0)
Now r=0 or 9 (0<r<9)
Thas shows the remainder can be
0,1,2,3,4,5,6,7 or8
That is,(9m+1),(9m+2) and later no.

Answer 2

I hope it helpss!! :D