化简sin-根号3cosx
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化简sin-根号3cosx
化简sin-根号3cosx
化简sin-根号3cosx
sinx-√3cosx
=2(sinx/2-√3cosx/2)(因为1/2=cosπ/3,√3/2=sinπ/3)
=2(sinxcosπ/3-cosxsinπ/3)
=2sin(x-π/3)
sinx-sqrt(3)*cosx
=2(sinx*(1/2)-cosx*(sqrt(3)/2))
=2(sinx*cos(pi/3)-cosx*sin(pi/3))
=2sin(x-pi/3)
其中pi=3.1415926......
化简sin-根号3cosx
化简sin(x-π/3)-cos(x=π/6)+根号3cosx
化简:sin(x-π/3)-cos(x+π/6)+根号3cosx,
f(x)=[2sin(x+π/3)+sinx]cosx-根号3sin2x,化简
化简(根号3)/2sinx+1/2cosx=sin(x+π/6),
化简f(x)=2sinxcosx(π/2-X)-根号3sin(π+x)cosx+sin(π/2+x)cosx并求最值
.化简:根号3sinX+cosX,
化简SINX-根号3COSX
1/sin(x-120)-1/sin(x+120)=4根号3/3,求cosx
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y=cosx(根号3sinx+cosx)化简
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化简(cosX +sin X) /(cosX -sinX)
求下列函数的定义域 y=根号(-sin x/3) y=根号(sinx-1/2)+根号(cosx)
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