作者chienluen (小捻)
看板ck61st323
標題[問題] 好久不見~微積分又來惹~
時間Wed Jun 16 16:21:26 2010
想問問下面兩題證明題~
Q1
Consider the second-order linear differential equation with constant
coefficients y"(t)+p*y'(t)+q*y(t)=c.
Prove that if p^2>4q the general solution is of the form
y=d1*exp(r1*t)+d2*exp(r2*t)+c/q
Q2
Show that, if y"=-y, y'=1, and y=0 when x=0, then y=sinx.
麻煩大家惹~我期末考快噴了= =+
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