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曲线处的切线方程为( )
A. B.
C. D.
函数处的切线方程为 ( )
A. B. C. D.
函数处的切线方程为( )
A.3x-y-4=0 B.3x+y-2=0 C.4x+y-3=0 D.4x-y-5=0
A.3x-y-4=0 B.3x+y-2=0 C.4x+y-3=0 D.4x-y-5=0[来