關於x33x2的百科

• 曲線y=-x3+3x2在點（1,2）處的切線方程為                              ...

• 問題詳情：曲線y=-x3+3x2在點（1,2）處的切線方程為                                                                 （   ）    A．y=3x-1       B．y=-3x+5        C．y=3x+5      ...
• 2021-05-2815887