化简sin(x+y)-2sinxcosx/2sinxsiny+cos(x+y
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化简sin(x+y)-2sinxcosx/2sinxsiny+cos(x+y
y=(cos^2x)/(sinxcosx-sin^2x),(0
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y=sin^2x+2sinxcosx的值域
y=sin^2x-sinxcosx+1/2的值域
求y=sin^2(x)-sinxcosx+2的值域
求y=sin平方x+2sinxcosx的周期
函数y=sinxcosx-3sin^2(x)的最大值
求y=sinxcosx+sin^2x,0
化简:y=cos^2x+2sinxcosx-sin^2x
y=2sin^2 x+4sinxcosx+5cos^2 x 化简
y=sin^2x-根号3sinxcosx-cos^2x化简
化简:y=cos^4 x+2 sinxcosx-sin^4 x
y=sin^4x+2√3 sinxcosx-cos^4x 化简
化简sin(2x+π/3)-(根号3)sin²x+sinxcosx+(根号3)/2
f(x)=sin^2x+sinxcosx-1/2,化简
sin²X-sinxcosx+2cos²x=化简