若sinz=0,则z=___________
曲面sinz-z+xy=1在点(2,-1,0)出的法线方程
∮(sinz)^2012/z^2012(z-1)dz,|z|=2正向
sinx+siny+sinz=0,cosx+cosy+cosz=0,求cos(y-z)的值.
已知sinx+siny+sinz=cosx+cosy+cosz=0,求tan(x+y+z)+tanxtanytanz的值
将函数f(z)=sinz展开成z的幂级数
已知x,y,z属于(0,派/2),sin^2x+sin^2y+sin^2z=1,求(sinx+siny+sinz)/(c
求由方程sinz=x^y所确定的隐函数z=z(x,y)的微分dz
已知sinx+siny+sinz=0,cosx+cosy+cosz=0,求证cos(x-y)=cos(y-z)=cos(
证明sinx+siny+sinz-sin(x+y+z)=4sin((x+y)/2)sin((x+y)/2)sin((x+
已知sinx+siny+sinz=0,cosx+cosy+cosz=0 则cos(x-y)=______ 要详解
设随机变量Z服从区间[0,2π]上的均匀分布,且X=SINZ,Y=SIN(Z+K),K为常数,求ρxy并讨论X,Y的相关
13.已知二元隐函数z=z(x,y)由方程sinz-yz^2=1-2xyz确定,求全微分dz