作业帮设y=sin(x y),求d²y/dx²
来源：学生作业帮助网 编辑：作业帮 时间：2024/04/29 22:51:27
设y=sin(x y),求d²y/dx²
设y=sin(x y),求d²y/dx²
设y=sin(x y),求d²y/dx²
y=sin(xy)
dy/dx=cos(xy)*y
=ycos(xy)
d²y/dx²=-ysin(xy)*y
=-y²sin(xy)
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来源：学生作业帮助网 编辑：作业帮 时间：2024/04/29 22:51:27
设y=sin(x y),求d²y/dx²
设y=sin(x y),求d²y/dx²
设y=sin(x y),求d²y/dx²
y=sin(xy)
dy/dx=cos(xy)*y
=ycos(xy)
d²y/dx²=-ysin(xy)*y
=-y²sin(xy)