Re: [微積] 求f(x)
※ 引述《stman (小強)》之銘言:
: If f is continuous function such that
: x x x 2
: ∫ f(t) dt = xe -∫ t f(t)dt
: 0 0
: for all x, find an explicit formula fo f(x).
f(x) = e^x + xe^x - [x^2 f(x)]
f(x) = (1+x)exp(x)/(1+x^2)
--
※ 發信站: 批踢踢實業坊(ptt.cc)
◆ From: 128.220.159.6
推
11/09 10:13, , 1F
11/09 10:13, 1F
→
11/09 10:43, , 2F
11/09 10:43, 2F
討論串 (同標題文章)