不定积分x+1\/根号2x+1dx
2015-01-01 ∫x\/根号2x+1dx 12 2013-06-25 ∫1\/1+√2x+1dx求不定积分 需要过程 2018-11-23 求不定积分∫1\/2x+1dx 6 2018-03-05 ∫x\/根号(2x+1)dx有解吗 12 2011-09-14 求不定积分的方法∫x根号x+1dx 10 2017-12-30 【(x+1)\/根号(x方+2x)】dx,求不定积分 2015-03-23 求...
∫x\/根号2x+1dx
追答 请给好评,先凑微分,再分部积分 已赞过 已踩过< 你对这个回答的评价是? 评论 收起 其他类似问题2014-03-14 不定积分x+1\/根号2x+1dx 3 2018-01-04 ∫x\/x²+1dx 2 2014-07-14 ∫x\/2x-1dx怎么算啊 2011-12-24 x+2\/根号2x+1dx 2013-06-13 计算∫上4下0x+2\/根号2x+1dx要祥细步...
∫1\/1+√2x+1dx求不定积分 需要过程
∫1\/(1+√(2x+1))dx √(2x+1)=t (2x+1)=t^2 2dx=2tdt ∫1\/(1+√(2x+1))dx =∫tdt\/(1+t)=∫(t+1-1)dt\/(1+t)=∫(1-1\/(1+t))dt =t-ln(1+t)+C =√(2x+1)-ln(1+√(2x+1))+C
∫dx\/根号2x+1的不定积分
t=根号(2x+1), x=1\/2*t^2-1\/2 dx=tdt ∫dx\/根号2x+1dx =S1\/t *tdt =Sdt =t+c =根号(2x+1)+c
∫x+2\/√2x+1dx
求∫(x+2)\/[√(2x)+1]dx 解:令√(2x)=u,则2x=u²,2dx=2udu,dx=udu,故 原式=∫(u²\/2+2)udu\/(u+1)=(1\/2)∫(u²+4)udu\/(u+1)=(1\/2)∫[(u²-u+5)-5\/(u+1)]du =(1\/2)[∫u²du-∫udu+∫5du-5∫[d(u+1)\/(u+1)]=(...
∫0到41\/1+√2x+1dx
令√(2x+1)=t,则x=(t²-1)\/2 ∫[0:4]dx\/[1+√(2x+1)]=∫[1:3]d[(t²-1)\/2]\/(1+t)=∫[1:3][t\/(1+t)]dt =∫[1:3][1- 1\/(t+1)]dt =(t-ln|t+1|)|[1:3]=(3-ln|3+1|)-(1-ln|1+1|)=2-ln2 ...
你好,不定积分∫x+1\/x^2+x+1dx怎么做
+x+1)dx+1\/2∫1\/((x+1\/2)²+3\/4)dx =1\/2∫1\/(x²+x+1)d(x²+x+1)+1\/2∫1\/(u²+3\/4)du =(1\/2)ln(x²+x+1)(1\/2)\/(3\/4)*√3\/2*arctan(2u\/√3)+C =(1\/2)ln(x²+x+1)+(1\/√3)arctan((2x+1)\/√3)+C ...
∫1除以1-根号下2x+1dx?
只是一个常规的变量替换。详情如图所示:供参考,请笑纳。
求不定积分∫1\/✔2x+1 +✔2x-1dx
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x5+ 1\/x2 +1dx定积分求法
∫x^5\/(1+x^2)+1\/(x^2+1)dx =1\/2∫x^4\/(x^2+1)d(x^2)+arctanx=1\/2∫(x^2-1)+1\/(x^2+1)d(x^2)+arctanx =1\/2(1\/2x^4-x^2)+1\/2lnlx^2+1l+arctanx =1\/4x^4-1\/2x^2+1\/2lnlx^2+1l+arctanx+C ...