Question

The number of subsets that can be created from the set {1, 2, 3} is

Answer 1

Each of the 3 elements can either be in a given subset or not in a given subset.
So if we construct a random subset, we have to make 3 independent choices.
Is 1 in or out? Is 2 in or out? Is 3 in or out?
2 x 2 x 2
Or with only 3 items, its easy enough to list them. Don't forget the Null set!

Answer 2

number of subset = 2^n

that's the formula to get all subsets of a set

Answer 3

is it 3

Answer 4

2^3 = 2 x 2 x 2 = ... ?

Answer 5

its 8 sorry

Answer 6

correct !

Answer 7

ok thank you can you help me with my other problem