Herrera Huff
07/22/2024 · Junior High School
methid of corfficients to solve. \( \frac{d^{2} y}{d t^{2}}+3 \frac{d y}{d t}+2 y=\cos t \) given when \( t=0 \), \[ \begin{aligned} & y=0 \\ & \frac{c y}{d t}=0\end{aligned} \]
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The solution to the differential equation is \( y(t) = -\frac{1}{2} e^{-t} + \frac{2}{5} e^{-2t} + \frac{1}{10} \cos t + \frac{3}{10} \sin t \).
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