2exsinx的精选

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设y=-2exsinx,则y′等于(　　)A.-2excosx                        ...

设y=-2exsinx,则y′等于(　　)A.-2excosx                        ...

2020-10-21
问题详情：设y=-2exsinx,则y′等于()A.-2excosx                         B.-2exsinxC.2exsinx                              D.-2ex(sinx+cosx)【回答】D知...