[微積] 請問∫g(x)f(x) dx的解法
印象中是
g(x) f(x)
g'(x) ∫f(x)dx
g''(x) ∫∫f(x)dx
然後交叉相乘 偶數項的g(x)是不是都要再加負號呀
煩請知道的鄉民跟我說一下
再請問如果兩項分別為e的x次 跟函數x
這種微分積分不會消失的 要怎麼解決呢
感謝各位
--
--
※ 發信站: 批踢踢實業坊(ptt.cc)
◆ From: 122.123.56.15
→
02/10 22:25, , 1F
02/10 22:25, 1F
→
02/10 22:26, , 2F
02/10 22:26, 2F
→
02/10 22:27, , 3F
02/10 22:27, 3F
→
02/10 22:27, , 4F
02/10 22:27, 4F
→
02/10 22:29, , 5F
02/10 22:29, 5F
→
02/10 22:35, , 6F
02/10 22:35, 6F
→
02/10 22:35, , 7F
02/10 22:35, 7F
→
02/10 22:37, , 8F
02/10 22:37, 8F
→
02/10 22:38, , 9F
02/10 22:38, 9F
→
02/10 23:13, , 10F
02/10 23:13, 10F
→
02/10 23:13, , 11F
02/10 23:13, 11F
→
02/10 23:19, , 12F
02/10 23:19, 12F