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化简sinxcosx+√3(cosx)^2
人气:321 ℃ 时间:2020-10-01 22:31:14
解答
sinxcosx+√3(cosx)^2
=1/2sin2x+√3/2(cos2x+1)
=1/2sin2x+√3/2cos2x+√3/2
=sin2xcosπ/6+cos2xsinπ/6+√3/2
=sin(2x+π/6)+√3/2
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