已知sin 2x=3/4,且x∈（π/4

已知函数f(x)=2sin(x/4)cos(x/4)-2√3sin²（x/4)+√3,且g(x)=f(x+π/ 已知sin X+cos X=m,|m|小于等于根号2且|m|不等于1,求sin X^3+cos X^3,sin X^4+ 已知函数f(x)=4x^3-3x^2sinθ+1/32,其中x∈R,θ为参数,且0≤θ＜π. 已知向量a=[cos(3x/2),sin(3x/2)],b=[cos(x/2),-sin(x/2),]且x∈[0,π/2 已知向量a=(cos(3x/2),sin(3x/2)),b=(cos(x/2),-sin(x/2)),且x∈[0,π/2 1.已知sin(X/2)=(4/5),且X∈（π/2 ,π）,求sinX ,cosX的值. 已知函数f(x)=3sin(2x+π/4)+1(x∈R） 已知函数f(x)=sin^2 x+2根号3sinxcosx+sin(x+π/4)sin(x-π/4),x属于R,求f(x 已知函数f(x)=cos(2x-π/3)+2sin(x-π/4)sin(x+π/4) 已知函数f(x)=sin^2*x-根号3*sinπ/4*x*cosπ/4*x 已知函数f(x)=cos(2x-π/3）+2sin(x-π/4）sin(x+π/4)=sin(2x-π/6) , 已知sin(π/3-x)=-1/5,且0