Zy=xcos(xy)-xsin(2xy)本回答被提问者采纳
z=sin(xy)+cos(的平方)(xy) 求函数的偏导数,谢谢~~~
对谁求偏导就相当于把其他变量看成常数处理。求X的偏导就是把方程中的Y看作常数A，导数你会求吧。求Y的偏导同理
求下列函数的偏导数z=sin(xy)
Zx=ycos(xy)-2ycos(xy)sin(xy)=ycos(xy)-ysin(2xy)Zy=xcos(xy)-xsin(2xy)
求下列函数的偏导数:z=sin(xy)+cos²(xy)。
如图
z=sin(xy)+cos^2(xy)一阶偏导数
∂Z\/∂y= x*cos(xy) -2cos(xy)*sin(xy)*x = x*cos(xy) - x*sin(2xy)
z=sin(xy)+cos^2(xy)一阶偏导数?
∂Z\/∂x= y*cos(xy) -2cos(xy)*sin(xy)*y = y*cos(xy) - y*sin(2xy)∂Z\/∂y= x*cos(xy) -2cos(xy)*sin(xy)*x = x*cos(xy) - x*sin(2xy),6,
求z=sinxy+cos^2xy的偏导数
z = sin(xy) + cos²(xy)∂z\/∂x = ycos(xy) - 2ycos(xy)sin(xy) = ycos(xy) - ysin(2xy)∂z\/∂y = xcos(xy) - xsin(2xy)...
第二和第四小题求偏导数。谢谢
2、z=sin(xy)+cos^2 (xy)Z'x=y *cos(xy) +2cos(xy) * [-sin(xy)] *y =y *cos(xy) -2sin(xy) *cos(xy) *y 同理Z'y=x *cos(xy) -2sin(xy) *cos(xy) *x 4、u=x^(y\/z)即u=e^(lnx *y\/z)u'x=y\/z *x^(y\/z -1)u'y=x^(y\/z) *lnx *1\/z u'...
...1)处的全微分 求函数z=sin(xy)+cos⊃2;(xy)的偏导数
比较详细,我提供图片
求偏导数:(1)z=sin(xy)+cos(x+y)(2)z=(1+xy)的y次方
2015-06-21 求z=sin(xy)+cos^2(xy)的y的偏导 4 2015-05-13 sin(x+z)=cos(y+z)一阶偏导数 1 2018-03-19 求下列函数的偏导数:z=sin(xy)+cos²(... 7 2014-05-08 z=sin(xy)+cos²(xy)的偏导数,详细... 2014-06-15 z=(1+xy)^y,怎么对y求偏导 20 2014-07-29 z=(1...
Z=sin(xy)+xIny分别求对x和y的偏导数
对X 就是 ycos(xy)+Lny 对y 就是 xcos(xy)+x\/y
