Combinatorics Flashcards
1
Q
And means
A
Multiply
2
Q
How many signals a
A
Combinatorics problem
3
Q
1!
A
1
4
Q
2!
A
2! = 2 x 1 = 2
5
Q
3!
A
=3 x 2 x 1 = 6
6
Q
4! = 4 x 3 x 2 x 1
A
24
7
Q
5!
A
120
8
Q
6!
A
720
9
Q
Or means
A
Add
