PS18: Counting with Functions; Combinatorics

Due Wed 11/5 @ 10am.

Do these problems from the book, listed on pages 934–937. Remember to show your work, and/or provide an argument or explanation.

  1. 9.40
  2. 9.43
  3. 9.45
  4. 9.46
  5. 9.49
  6. 9.80

Also do these problems, listed on pages 954 & 955.

  1. 9.93
  2. 9.94
  3. 9.96
  4. 9.97
  5. 9.101
  6. 9.102
  7. 9.103
  8. 9.104
  9. 9.116
  10. 9.118
  11. 9.119 (This problem was cancelled; we haven't covered combinatorial proofs yet, and that's the way I'd want you to answer this question.)