化简(sin^4+cos^4+sin^2xcos^2x)/(2-sin2x)
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化简(sin^4+cos^4+sin^2xcos^2x)/(2-sin2x)化简(sin^4+cos^4+sin^2xcos^2x)/(2-sin2x)化简(sin^4+cos^4+sin^2xcos
化简(sin^4+cos^4+sin^2xcos^2x)/(2-sin2x)
化简(sin^4+cos^4+sin^2xcos^2x)/(2-sin2x)
化简(sin^4+cos^4+sin^2xcos^2x)/(2-sin2x)
(sin^4x+cos^4x+sin^2xcos^2x)/(2-sin2x)
=[(sin²x+cos²x)²-2sin²xcos²x+sin²xcos²x]/(2-sin2x)
=(1-sin²xcos²x)/(2-2sinxcosx)
=(1+sinxcosx)(1-sinxcosx)/2(1-sinxcosx)
=(1+sinxcosx)/2
=1/2+(sin2x)/4
化简sin^4x-sin^2x+cos^2x
化简:sin^4 x-sin^2 x+cos^2 x
化简[1-(sin^4x-sin^2cos^2x+cos^4x)/(sin^2)]+3sin^2x
sin^4+sin^2cos^2+cos^2a=
化简sin^4x+cos^2x
化简(sin^2x-cos^4x+cos^2x-sin^4x)/(sin^2x-cos^6x+cos^2x-sin^6x)
(1-sin^4a-cos^4)/(sin^2a-sin^4a) 化简
化简[1-(sin^4 x-sin^2 xcos^2 x+cos^4 x)]/(sin^2 x)+3sin^2 x
化简sin^4α+cos^4α+2sin^2α*cos^2α-1
化简:sin^4a+cos^2a-sin^2a-cos^4a
化简cos^4角+sin^2角cos^2角+sin^2角
化简sin^4α+cos^2α+sin^2α*cos^2α
化简4sin派/8*cos派/8*(cos^2派/8-sin^2派/8)
化简:cos^4α-sin^4α+2sin^2α化简:cos^4α-sin^4α+2sin^2α
化简【完整步骤!】1.(sin^4x-sin^2x)/secx2.sin^4x-cos^4x【这道题的正确答案是sin^2x-cos^2x】
求cos(4sinx)、cos(3sinx)、sin(cosx)、sin(cos2x)、sin(cos3x)、sin(2cosx)值域
化简sin(α-5π)/cos(3π-α)×cos(π/2-α)/sin(α-3π)×cos(8π-α)/sin(-α-4π)
sin^8X+cos^8X+4sin^2Xcos^2x-2sin^4xcos^4X(化简)