83.18 Chapter IV. Equations of the first order but not of the first degree. Exercise IV (A) at page 53

83.18.1 problem 1
83.18.2 problem 2
83.18.3 problem 3
83.18.4 problem 4
83.18.5 problem 5
83.18.6 problem 6
83.18.7 problem 7
83.18.8 problem 8
83.18.9 problem 9
83.18.10 problem 10
83.18.11 problem 11
83.18.12 problem 12
83.18.13 problem 13
83.18.14 problem 14
83.18.15 problem 15
83.18.16 problem 16
83.18.17 problem 17
83.18.18 problem 18