搜搜做题作业网求教高数
来源：学生作业帮 编辑：搜搜做题作业网作业帮 分类：数学作业 时间：2024/08/09 23:03:37
求教高数
积分顺序改成x,z,y
I=∫(0,1)(1-y)dy∫(0,1-y)dz∫(0,1-y-z)e^(-(1-y-z)^2)dx
=∫(0,1)(1-y)dy∫(0,1-y)(1-y-z)e^(-(1-y-z)^2)dz
=(1/2)∫(0,1)(1-y)dy∫(0,1-y)e^(-(1-y-z)^2)d(-(1-y-z)^2)
=.
没问题啦?
I=∫(0,1)(1-y)dy∫(0,1-y)dz∫(0,1-y-z)e^(-(1-y-z)^2)dx
=∫(0,1)(1-y)dy∫(0,1-y)(1-y-z)e^(-(1-y-z)^2)dz
=(1/2)∫(0,1)(1-y)dy∫(0,1-y)e^(-(1-y-z)^2)d(-(1-y-z)^2)
=.
没问题啦?