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设曲线在点(3,2)处的切线与直线2ax+y+1=0垂直,则a=________.
设曲线在点(3,2)处的切线与直线ax+y+1=0垂直,则a等于
2
-2
设曲线在点(3,2)处的切线与直线ax+y+1=0垂直,则a=
A.2
B.
C.
D.-2
A.
D.
2011.10.25至2011.10.28