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¹ÌºÐ¹æÁ¤½Ä(differential equation), y¡Ç+ay=0 Ç®±â

ÀÛ¼ºÀÚ Uploader : ´ë±â¸¸¼º ÀÛ¼ºÀÏ Upload Date: 2022-06-18º¯°æÀÏ Update Date: 2022-06-18Á¶È¸¼ö View : 231

y¡Ç+ay=0, f(x0)=y0 ¸¦ Ç®¸é y = C*e^(-ax) = y0*e^(a(x0-x)) ÇüÅ°¡ µÈ´Ù.

y¡Ç = dy/dx = -ay

dy/y = -adx

¾çº¯À» ÀûºÐÇϸé,

ln(y) = -ax + C1

y = e^(-ax + C1) = e^(ax) * e^(C1)

e^(C1) = C ¶ó Çϸé

y = C*e^(-ax)

x = x0 ¿¡¼­ y = y0 À̹ǷÎ,

C = y0*e^(ax0)

y = y0*e^(ax0)*e^(-ax)

 = y0*e^(a(x0-x))

°¡ µÈ´Ù.

*** Âü°í¹®Çå[References] ***

y = y0*e^(a(x0-x))
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º¯¼ö¸í Variable º¯¼ö°ª Value º¯ ¼ö ¼³ ¸í Description of the variable


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