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Mathematics
Mathematics
Problem
Find the value of
k
k
k
such that the function
f
(
x
)
=
x
3
−
3
k
x
f(x)=x^{3}-3kx
f
(
x
)
=
x
3
−
3
k
x
attains a local minimum at
x
=
1
x=1
x
=
1
.
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