曲线y=在点(-1,-1)处的切线方程为(......)
A.y=2x+1 ........................ | B.y=2x-1 |
C.y=-2x-3 .................. | D.y=-2x-2 |
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曲线y=在点(-1,-1)处的切线方程为(......)
A.y=2x+1 ........................ | B.y=2x-1 |
C.y=-2x-3 .................. | D.y=-2x-2 |