12.5 Chapter 2, First order equations. Transformation of Nonlinear Equations into Separable Equations. Section 2.4 Page 68

12.5.1 problem Example 1
12.5.2 problem Example 2
12.5.3 problem Example 3(a) (As Riccati)
12.5.4 problem Example 3(b)
12.5.5 problem 1
12.5.6 problem 2
12.5.7 problem 3
12.5.8 problem 4
12.5.9 problem 5
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12.5.38 problem 35(a)
12.5.39 problem 36(a)
12.5.40 problem 37(a)
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