设f(x，y)=e-xsin(2x+y)，则

admin2019-02-01 38

问题设f(x，y)=e^-xsin(2x+y)，则

选项

答案一e^-x[2sin(2x+y)+cos(2x+y)]

解析

[一e^-x.sin(2x+y)+2e^-x.cos(2x+y)]=一e^-x.cos(2x+y)一2e^-x.sin(2x+y)=一e^-x[cos(2x+y)+2sin(2x+y)]．

转载请注明原文地址:https://www.kaotiyun.com/show/WggR777K

高等数学（工本）

相关试题推荐

随机试题

最新回复(0)