S5 math m1 definite integral 3

2014-11-29 8:28 pm

Using the substitution u=1/x, prove that
∫(upper limit=5, lower limit=0.2) (lnx^3)/[(x^2)+1]

Please help!! Thanks a lot!

回答 (1)

2014-11-29 8:55 pm

✔ 最佳答案

Please Read：

圖片參考：https://s.yimg.com/rk/HA07344914/o/1279832558.png

2014-11-29 14:29:35 補充：
如果題目係
∫(upper limit=5, lower limit=0.2) (lnx)^3 dx /[(x^2)+1]

Solution：
http://postimg.org/image/6iwmmxutj/

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