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化简:f(x)=sinxcosx+[(根号3)/2]cos2x
人气:177 ℃ 时间:2020-09-06 22:15:31
解答
f(x)=sinxcosx+[(根号3)/2]cos2x
=1/2sin2x+√3/2cos2x
=sin2xcos60°+cos2xsin60°
=sin(2x+60°)
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