sin(x+派/3)+2sin(x-派/3)-根号3cos(2派/3-x)
sin(x+派/3)+2sin(x-派/3)-根号3cos(2派/3-x)
化简:sin(2派-x)tan(派+x)cot(-x-派)/tan(3派-x)cos(派-x)
求(sin(派-x)cos(3/2派-x)tanx)/(cos(2派-x)cot(x-派/2)sin(派/2-x))
f(x)=sin(派-x)cos(2派-x)/sin(派/2+x)tan(派+a) 求f(31派/3)
f(x)=cos(2x-派/3)-2sin x*cos (派/2+x)
已知函数f(x)=2根号3sin(x/2+派/4)cos(x/2+派/4)-sin(x+派).求f(x)的最小正周期
已知COS(X+派/4)=根号2/10,x属于(派/2,3派/4) 求sinx 求sin(2x+派\4)
已知函数f(x)=sin^2(x/2+派/12)+根号3sin(x/2+派/12)cos(x/2+派/12)-1/2.(
已知函数f(x)=2根号3sin(x/2+派/4)cos(x/2+派/4)-sin(x+派).
高一数学 已知函数f(x)=2sinxcos(派/2-x)-根号3*sin(派+x)cosx+sin(派/2+x)cos
已知sinx=3/5,求sin(x-3/2派cos(派-x)tan(派+x)
sin(x/2+派/6)=1/2,求cos(x+派/3)