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Mathematics
Mathematics
Problem
If
f
(
x
)
=
1
x
f(x)=\dfrac{1}{x}
f
(
x
)
=
x
1
, which of the following equals
f
′
(
x
)
f'(x)
f
′
(
x
)
when evaluated from the limit definition? a)
−
1
x
2
-\dfrac{1}{x^{2}}
−
x
2
1
b)
1
x
2
\dfrac{1}{x^{2}}
x
2
1
c)
−
1
x
-\dfrac{1}{x}
−
x
1
d)
2
x
3
\dfrac{2}{x^{3}}
x
3
2
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