不定积分题目
\u4e0d\u5b9a\u79ef\u5206\u9898\u76ee\u6211\u597d\u96be\u6253\u7ed9\u4f60\uff0c\u5982\u679c\u4f60\u60f3\u7b54\u6848\u7684\u8bdd\uff0c\u4e0d\u5982\u53d1\u5230\u4f60\u7684\u90ae\u7bb1\u5427
\u4f60\u7684\u90ae\u7bb1\u5730\u5740\u662f\u4ec0\u4e48\uff1f \u4f60\u5148\u770b\u7740\u56fe\u7247\u5427
\u4ece\u6c42\u5fae\u5206\u8fc7\u7a0b\u800c\u6765\u7684
du=2dx
\u4e24\u8fb9\u9664\u4ee52\u5f97
(1/2)du=dx
\u6216\u8005\u4ece\u5bfc\u6570\u65b9\u9762\u597d\u7406\u89e3
u=2x
u'=du/dx=2,\u5c06dx\u79fb\u8fc7\u53bb
du=2dx
du/2=dx
用分部积分法、
详细答案在图片上，希望得到采纳，谢谢≧◔◡◔≦
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