2. 考研
  3. ∫02dy∫y2x2ex2dx=_________．

∫02dy∫y2x2ex2dx=_________．

admin2020-03-18  81
问题 ∫02dy∫y2x2ex2dx=_________．
选项
答案[*]
解析 改变积分次序得
∫02dy∫y2x2ex2dx=∫02x2ex2dx∫0xdy=∫02x3ex2dx
=∫02x2ex2d(x3)∫04tetdt
=(t-1)et｜=
转载请注明原文地址:https://www.kaotiyun.com/show/keD4777K
0

考研数学三

相关试题推荐
随机试题
最新回复(0)