求y=sin＾2(x)+3sin(x)cos(x)-2cos＾2(x)的最大值

y =(cos^2) x - sin (3^x),求y' 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 求y=sin＾2(x)+3sin(x)cos(x)-2cos＾2(x)的最大值 sinx=1/3,sin(x+y)=1,求sin（2y+x）=? siny=1/3,sin(x＋y)=1,求sin(2x＋y) (cosx)^2-(cosy)^2=1/3求sin(x+y)*sin(x-y). 求y=sin[sin(x^2)]的导数 sin^2x+cos^2y=1/2 求3sin^2x+sin^2y的最值 y=sin(x^2),求dy/d(x^3) y=sin(x^3),求dy/d(x^2) y=sin(3x+2)求y' 求函数y=sin(x+1/3兀)sin(x+1/2兀)的周期 求函数y=sin(x+派/3)sin(x+派/2)的最小正周期 sin(x+y)sin(x-y)=k,求cos^2x-cos^2y Sin x-sin y=2/3 cos x-cos y=1/2 求cos(x-y) 当cos^2x-cos^2y=√3/2时,求sin(x+y）×sin(x-y) 已知(sinx)2-(siny)2=m求sin(x y)sin(x-y)求sin(x+y)sin(x-y) 已知Sin x+Sin y=1/2,Cos x+Cos y=根号3/3,求S求Sin(x-y)/2