作者chat543 (小ㄐ)
看板trans_math
标题[积分] 91中兴第一题~
时间Sun Jul 6 20:57:09 2008
Find a function f and a constant c such that
x
∫ tf(t)dt = sinx - xcosx -1/2x^2 , for all x.
c
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◆ From: 125.229.192.196
1F：→ chat543:只知道用分部积分~但接下来不知道怎解了?125.229.192.196 07/06 20:58
2F：推 joeytseng:两边对x微 140.112.18.232 07/06 21:07