Problem 예제.

Multiple Choice • Views 628 • Comments 0 • Last Updated at 1 month ago

$\dfrac{d^2x(t)}{dt^2} + 2 \dfrac{dx(t)}{dt}+x(t) =1$ 에서 $x(t)$ 는 얼마인가? 단, $x(0) = \dot{x}(0)=0$ 이다.

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$1-te^{-t}-e^{-t}$

$1+te^{-t}+e^{-t}$

$te^{-t}-e^{-t}$

$te^{-t}+e^{-t}$

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