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• lab{6.8.7a} Show that [math]y = c_1e^{\alpha x}\sin(\beta x+c_2)[/math] is a solution of the differential equation [math]y^{\prime\prime} - 2\alpha y^\prime + (\alpha^2+\beta^2)y = 0[/math].
• Show that [math]y = c_1e^{\alpha x}\cos(\beta x+c_2)[/math] is also a solution of the differential equation in \ref{ex6.8.7a}.