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曲线y=x3-3x2+1在点(1,-1)处的切线方程为( )
A.y=3x-4 B.y=4x-5
C.y=-4x+3 D. y=-3x+2
曲线y=x3-3x2+1在点(1,-1)处的切线方程
A.y=3x-4
B.y=-3x+2
C.y=-4x+3
D.y=4x-5
曲线y=x3-3x2+1在点(1,-1)处的切线方程是________