00:01
Here we're given a set and we want to find the number of subsets and the number of proper subsets.
00:07
So we have 0, 2, 16, 12, and 15.
00:11
Right? so let's just look at the number of subsets.
00:14
So the number that have five in them, 1, 2, 3, 4, 5, well there's only one.
00:20
How many have four? well there's going to be 0, 2, 16, 12.
00:24
There's going to be 1, 2, 3, 4, 5 of them.
00:26
Just eliminate one.
00:27
How many of them have three? that's going to be, let's see, 0, 2, 16, 0, 2, 12, 0, 2, 15.
00:33
So there's going to be three for that one...