z=sinx/sin(x+y)偏导怎么求?如题,sinx/sin(x+y)偏导

z=sinx/sin(x+y)偏导怎么求?如题,sinx/sin(x+y)偏导 求函数z=sinx+siny+sin(x+y)(0 m=(sinx)/sin(y-z),n=(siny)/sin（z－x）,p=（sinz）/sin（x－y）,求mn+np+pm. 已知x,y,z属于(0,派/2),sin^2x+sin^2y+sin^2z=1,求(sinx+siny+sinz)/(cosx+cosy+cosz)的最大值 三角函数最值y=sin^x-3sinx+3/2-sinx三角函数最值y=(sin^x-3sinx+3)/(2-sinx)怎么求? 三角不等式证明证明sin(x+y)+sin(y+z)+sin(z+x)>sinx+siny+sinz+sin(x+y+z) 求函数z=(x+y)sin(x-y)的偏导数∂z/∂x,∂z/∂y 2sin(3x-2y+z)=3x-2y+z,求偏导数 1.已知8cos(2x+y)+5cosy=0,求tan(x+y)*tanx的值.2.已知关于x的方程x^2+px+q=0的两根是tanx,tany,求sin(x+y)/cos(x-y)的值.3.化简:sin(x-y)/(sinx*siny)+sin(y-z)/(siny*sinz)+sin(z-x)/(sinz*sinx). 已知z=z(x,y)由sin(xy)+z^2=sin(x+z)确定,求z关于x的偏导数 y=sinx+sin|x| 求函数的值域：(1)y=|sinx|-2sinx (2)y=sin|x| |sinx| 求函数的值域：(1)y=|sinx|-2sinx (2)y=sin|x|+|sinx| 证明sinx+siny+sinz-sin(x+y+z)=4sin((x+y)/2)sin((x+y)/2)sin((x+y)/2) C语言求三角函数f(x,y,z)=sin(x)/(sin(x-y)*sin(x-z))+sin(y)/(sin(y-x)*sin(y-z))+sin(z)/(sin(z-x)*sin(z-y))代码#include #include double fun(double x,double y,double z){double a,b,c,sum;a=sin(x)/(sin(x-y)*sin(x-z));b=sin(y)/(sin(y-x)*sin(y-z));c z=sin(x,y)求Z在(1,1)点对X的偏导数 偏导数 Z=sin^2(x+2y) 求бz/бx,бz/бy 求y=sin^2x+x/sinx的最小值