The general solution to differential equation $y'' + frac{2}{t}y' = 0$ for $t > 0$ is given by $y(t) = c_1 + frac{c_2}{t}$. Find the general solution to $y'' + frac{2}{t}y' = sin t$. $circ y(t) = c_1 + frac{c_2}{t} + int t^2 sin t , dt - frac{1}{t} int t sin t , dt$ $circ y(t) = c_1 + frac{c_2}{t} + int t sin t , dt - frac{1}{t} int t^2 sin t , dt$ $circ y(t) = c_1 + frac{c_2}{t} + int frac{-sin t}{t ln t} , dt + frac{1}{t} int frac{sin t}{ln t} , dt$ $circ y(t) = c_1 + frac{c_2}{t} + int frac{-sin t}{t^3} , dt + int frac{sin t}{t^2} , dt$
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We already know that the general solution to this equation is given by: y_c(t) = C_1 \cos(t) + C_2 \sin(t) Now, we need to find a particular solution to the non-homogeneous equation y'' + 2y = \sin(t). We can guess a solution of the form: y_p(t) = A t \cos(t) + Show more…
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(a) y'' + 4y' + 3y = 5t^2 + 2t - 1. (b) y'' + 4y' + 3y = 4 sin 2t. (c) y'' + 4y' + 3y = 3e^2t. (d) y'' + 4y' + 3y = 3t^2e^2t. (e) y'' + 4y' + 3y = 5t^2 + 3e^2t. (f) y'' - 3y' + 2y = 3e^2t. (g) y'' - 4y' + 4y = 3e^2t. (h) y'' + 4y = 3 sin 2t. (i) y'' - 4y' = 3t^2.
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