61.6 Chapter 6.4 Reduction to a single ODE. Problems page 415

61.6.1 problem Problem 4(a)
61.6.2 problem Problem 4(b)
61.6.3 problem Problem 4(c)
61.6.4 problem Problem 4(d)
61.6.5 problem Problem 4(e)
61.6.6 problem Problem 4(f)
61.6.7 problem Problem 4(g)