Question

write the subsets of {1,2,3,4,5,6,7,8}

Answer 1

This is a bit big.
I'll give you a hint though.
The subsets of {a,b,c} would be
{a},{b).(c),(a,b),(a,c),(b,c),(a,b,c), null

Now try finding the subsets for the first one! :)

Answer 2

there are 2^8=256 subsets
some of them are given by Mr. AkashdeepDeb