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 April 20th, 2015, 04:53 PM #1 Member   Joined: Apr 2014 From: australia Posts: 68 Thanks: 32 Separable ODE Hello, which of these equations are separable ODEs? (a) $\displaystyle (dy/dx)^2 = [\ln^2(1+x) /(x+1)^4]y$ (b) $\displaystyle \ln(1+x)(dy/dx) + [(\sin x) /(1+x^2)]y = 0$ (c) $\displaystyle 8y - (\sin2x/2x)(dy/dx) + (\sin x) /(1+x^2) = 0$ (d) $\displaystyle \sqrt{1+y} = \cos2x(dy/dx)$ I get (a), (b) & (d). Thanks in advance. Thanks from Yury Stepanyants Last edited by skipjack; April 20th, 2015 at 05:27 PM.
 April 20th, 2015, 05:30 PM #2 Global Moderator   Joined: Dec 2006 Posts: 20,281 Thanks: 1965 You are correct. Thanks from harley05
 April 20th, 2015, 05:31 PM #3 Member   Joined: Apr 2014 From: australia Posts: 68 Thanks: 32 thanks for confirming Thanks from Yury Stepanyants

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