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// general

solve initial value problem (linear differential equation)

By Emma Terry
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To solve the initial value problem: $y' +2ty = e^{-t^2} , y(0) =y_0$

In which initial value $y_0$ comes from condition $y(2)=0$

Well, at least, I managed to solve the equation and find the general solution which is $y=te^{-t^2} + Ce^{-t^2}$. I think? but idk how to solve it with particular with initial value :)

ty for help etc :)

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1 Answer

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We have:

$$y(t) = e^{-t^2} ( c_1 + t )$$

At $t_0 = 2, y(2) = 0$, so we have:

$$y(2) = e^{-4}(c_1 + 2) = 0 \implies c_1 = -2$$

Hence

$$y(t) = e^{-t^2/2} (t - 2)$$

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