2. 考研
  3. ∫01dy∫0y2ycos(1-x)2dx=_______．

∫01dy∫0y2ycos(1-x)2dx=_______．

admin2019-09-04  61
问题 ∫01dy∫0y2ycos(1-x)2dx=_______．
选项
答案[*]
解析 ∫01dy∫0y2ycos(1-x)2dx=∫01cos(1-x)2dxydy
=∫01(1-x)cos(1-x)2dx=∫01cos(1-x)2d(1-x)2
=∫01costdt=∫01costdt=sin1．
转载请注明原文地址:https://kaotiyun.com/show/YdJ4777K
0

考研数学三

相关试题推荐
随机试题
最新回复(0)