f(x)=2sinxcosx+cos^2x-sin^2x
已知函数f(x)=sin^2x+2sinxcosx-cos^2x,x∈R
已知函数f(x)=sin^2x+2sinxcosx-cos^2x,x属于R
已知函数f(x)=sin^x+根号3sinxcosx+2cos^x,x属于R
已知f(x)=cos^2x+sinxcosx g(x)=2sin(x+π/4)sin(x-π/4)
已知函数f(x)=1/2cos^2x-sinxcosx-1/2sin^2x
已知函数f(x)=cos^2x-sin^2x+2根号3sinxcosx+1
已知函数f(x)=根号3(sin^2x-cos^2x)-2sinxcosx
已知函数f(x)=sin^2x-2sinxcosx+3cos^2x
已知函数f(x)=sin^2x+2sinxcosx+3cos^2x
已知函数f(x)=cos^2x-sin^2x+2sinxcosx
已知函数f(x)=sin^2x+2sinxcosx+3cos^x
函数f(x)=(sin^4)x+2sinxcosx+(cos^4)x的最小值