sin 2x为何等于2sinxcosx
已知函数f(x)=sin^2x+sinxcosx
sin²X-sinxcosx+2cos²x=
sin²x+sinxcosx+2cos²x=
y=sin^2x-3sinxcosx+4cos^2x是否等于y=sin^2x+cos^2x+3cos^2x-3/2*si
积分 sinxcosx/(1+sin^2x)^5 dx
求y=sin平方x+2sinxcosx的周期
1.∫(sinxcosx)/(1+sin^2x)dx
sin^2xtanx+cos^2x/tanx+2sinxcosx-(1+cosx/sinxcosx)化简
化简sin(2x+π/3)-(根号3)sin²x+sinxcosx+(根号3)/2
函数f(x)=2cosxsin(x+π/3)-根号3sin^2x+sinxcosx的最小值为多少?此时x等于多少
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