Use the method of variation of parameters to find a particular solution of http://forums.cramster.com/Answer-Board/Image/cramster-equation-2006491914366328020687673812501253.gif [Broken](adsbygoogle = window.adsbygoogle || []).push({});

ok i know first i do http://forums.cramster.com/Answer-Board/Image/cramster-equation-200649191556328020690592562506754.gif [Broken] then r = +/- 1i then i make that into the equation http://forums.cramster.com/Answer-Board/Image/cramster-equation-2006491921376328020729751937507714.gif [Broken] so cosx is http://forums.cramster.com/Answer-Board/Image/cramster-equation-2006491919466328020718630062506728.gif [Broken] and sinx is http://forums.cramster.com/Answer-Board/Image/cramster-equation-200649192286328020732811312508515.gif [Broken] so now the wronskian is w= http://forums.cramster.com/Answer-Board/Image/cramster-equation-2006491923196328020739986312508678.gif [Broken] which would be (cosx)(cosx) - (sinx)(-sinx). Now what do I do from here? I remeber something about integrals being used next, such as http://forums.cramster.com/Answer-Board/Image/cramster-equation-2006491928116328020769126937507389.gif [Broken] and a u2 integral

**Physics Forums | Science Articles, Homework Help, Discussion**

Join Physics Forums Today!

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

# Variation of Parameters Differential Eq.

**Physics Forums | Science Articles, Homework Help, Discussion**