化简~·cos(2x+π/3)+sinx^2
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化简~·cos(2x+π/3)+sinx^2化简~·cos(2x+π/3)+sinx^2化简~·cos(2x+π/3)+sinx^2原式=cos(2x+π/3)+(1-cos2x)/2=1/2cos2
化简~·cos(2x+π/3)+sinx^2
化简~·cos(2x+π/3)+sinx^2
化简~·cos(2x+π/3)+sinx^2
原式=cos(2x+π/3)+(1-cos2x)/2
=1/2cos2x-√3/2sin2x+1/2-1/2cos2x
=-√3/2sin2x+1/2
化简~·cos(2x+π/3)+sinx^2
-sinx=cos((3π/2-x)从-sinx推导
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
化简{sin(π+x)}/1+cos(3π-x)根号下(tanx-sinx)/(tanx+sinx)
cosx+根号3sinx=2cos(x-π/3)
cosx-√3sinx = 2cos(x+π/3)
cos(2x+π/3)+sinx的平方
cos(x+2π/3)化简后是sinx还是-cosx?
cos(2x+3分之π)+sinx的方化简
sinX=1/3 ,cos(2X - π)=
化简sinx+sin(x+2π/3)+cos(x+5π/6)
化简 sinx+sin(x+2π/3)+cos(x+5π/6)
化简2sinx*cosx*cos(2π-x)+cos(π+2x)*cosx*tanx
∫sinx/cos^(3)x
cos^2x sinx 不定积分
cos^2x sinx 不定积分
sinx+cosx/sinx-cosx=2 求sinx/cos^3x +cosx/sin^3x