化简 1/2cos x-根号3/2sin x
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化简1/2cosx-根号3/2sinx化简1/2cosx-根号3/2sinx化简1/2cosx-根号3/2sinx解1/2cosx-√3/2sinx=cosxcosπ/3-sinxsinπ/3=cos
化简 1/2cos x-根号3/2sin x
化简 1/2cos x-根号3/2sin x
化简 1/2cos x-根号3/2sin x
解
1/2cosx-√3/2sinx
=cosxcosπ/3-sinxsinπ/3
=cos(x+π/3)
化简 1/2cos x-根号3/2sin x 根3sin x+cos x
化简 1/2cos x-根号3/2sin x
化简2sin^2[(π/4)+x]+根号3(sin^x-cos^x)-1
化简:3/2cos x-(根号3)/2sin x
根号3 /2SIN X-1/2COS X
化简sin(x+PI/3)+2sin(x-PI/3)-根号3*cos(2pi/3-1)
化简[1-(sin^4x-sin^2cos^2x+cos^4x)/(sin^2)]+3sin^2x
cos 2x +根号下3乘sin 2x
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化简,1/2cosα+根号3/2sinα
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