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MARC:
2nd order ODE Variation of Parameters
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MARC:
Solve the following differential equation. \(y''+4y=tan~2x\)
MARC:
\(a=1~~~and~~~f(x)=tan~2x\)
MARC:
\(m^2+4=0\) \(m^2=-4\) \(m=\pm2i\)
MARC:
\(y_h(x)=Acos2x+Bsin2x\) \(y_1(x)=cos2x~~~,~~~y_2(x)=sin2x\)
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MARC:
\(w=cos2x(2cos2x)-sin2x(-2sin2x)\) \(w=2cos^2x-2sin^22x\)
sweetJ12:
yeah you are correct so far
MARC:
I was trying to find \(u(x)\) and \(v(x)\) but it looks weird a bit
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