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라플라스 변환

라플라스 변환

cos ωt의 라플라스 변환은?

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1

$\dfrac{s}{s^2-\omega^2}$

2

$\dfrac{s}{s^2+\omega^2}$

3

$\dfrac{\omega}{s^2+\omega^2}$

4

$\dfrac{\omega}{s^2-\omega^2}$

Solution

$\mathcal{L}(\cos \omega t ) = \dfrac{s}{s^2 + \omega^2}$

Correct answer 2

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