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3. For each of the following equations find a particular solution yp(t). (a) y"+4y= e^(5t) (b)...

3. For each of the following equations find a particular solution yp(t).

(a) y"+4y= e^(5t)

(b) 4y"+4y'+y = 3t(e^t)

(c) y"+4y'+2y=t^2

(d) y"+9y = cos(3t) +4sin(3t)

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