题目内容
设f(x)为可导函数,且满足A.2 B.-1 C.
D.-2
解析:![]()
![]()
=![]()
![]()
![]()
=
f′(1)=-1,
∴f′(1)=-2.
∴y=f(x)在(1,f(1))处的切线的斜率是-2.
答案:D
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题目内容
设f(x)为可导函数,且满足A.2 B.-1 C.
D.-2
解析:![]()
![]()
=![]()
![]()
![]()
=
f′(1)=-1,
∴f′(1)=-2.
∴y=f(x)在(1,f(1))处的切线的斜率是-2.
答案:D