At Least Two From $B$
Difficulty: Medium · Topics: Discrete Mathematics, Sets, Subsets
The sets A=\1,2,3,4,5,6\ and B=\2,3,4\ are given.
In how many of the subsets of A are there at least two elements of B?
Difficulty: Medium · Topics: Discrete Mathematics, Sets, Subsets
The sets A=\1,2,3,4,5,6\ and B=\2,3,4\ are given.
In how many of the subsets of A are there at least two elements of B?