Author Topic: Tut 0501  (Read 298 times)

Sally

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Tut 0501
« on: October 11, 2019, 01:53:59 PM »
(t^2)y”-t(t+2)y’+(t+2)y=0
y”+(-1)(t)(t+2)(y’)/(t^2)+(t+2)(y)/(t^2)
P(t)=-(t+2)/t=-(1+(2/t))
W=ce^(-∫P(t)dt) =ce^(∫1+(2/t)dt) =c(e^t)*(e^(ln(t^2)) =c(t^2)(e^t)