Problem 예제.

Multiple Choice • Views 661 • Comments 0 • Last Updated at 1 month ago

라플라스 변환을 이용하여 미분 방정식을 풀면?

$\dfrac{d^2 y}{dt^2} + 3y = 0$ 단, $y(0)=3, \quad \dot{y}(0) =4$

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$3 \cos \sqrt{3} t + \dfrac{4\sqrt3}{3} \sin \sqrt3 t$

$3 \cos \sqrt{3} t + 4 \sin \sqrt3 t$

$3 \cos \sqrt{3} t + \dfrac{4}{3} \sin \sqrt3 t$

$3 \cos 3 t + \dfrac{4}{\sqrt3} \sin \sqrt3 t$