已知曲线y1=2-与y2=x3-x2+2x在x=x0处切线的斜率的乘积为3,则x0

已知曲线y12y2x3x22xxx0处切线的斜率的乘积为3,则x0的值为(  )

A.-2                                               B2

C.                                                   D1

答案

D

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