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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-...
曲线y=
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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
考点分析:
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