A:
- Combinatorial product rule and sum rule
- Arrangements without repetition / k-permutations without repetition
- Arrangements with repetition / k-permutations with repetition
- Permutations without repetition
- Permutations with repetition
- Selections without repetition / k-combinations without repetition
B:
- Simplifying expressions with factorials and binomial coefficients
- Combinatorial equations
C:
- Selections with repetition/ k-combinations with repetition
- Combinatorial inequalities
- Binomial theorem
