化简~·cos(2x+π/3)+sinx^2
化简tan(3x/2)-tan(x/2)-sinx/(cos(3x/2)*cos(x/2))
函数f(x)=cos(2π-x)-x^3·sinx的奇偶性为
cosx+根号3sinx=2cos(x-π/3)
sinX=1/3 ,cos(2X - π)=
cos(2x+3分之π)+sinx的方化简
已知函数f(x)=cos(2x-π/3)+(cosx+sinx)(cosx-sinx)
cos^2x sinx 不定积分
化简2sinx*cosx*cos(2π-x)+cos(π+2x)*cosx*tanx
f(x)=2cos(2x+π/3)+√3(sinx+cosx)^2 化简
化简 sinx+sin(x+2π/3)+cos(x+5π/6)
sinx+cosx/sinx-cosx=2 求sinx/cos^3x +cosx/sin^3x
已知f(x) =sin^2 x +2sinx cos x + 3 cos^2 x ,x∈(0 ,π) .