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Mathematics
Mathematics
Problem
Find the largest possible domain of the function
f
(
x
)
=
2
x
e
x
f(x) = 2xe^x
f
(
x
)
=
2
x
e
x
,
x
≥
k
x \ge k
x
≥
k
for which the inverse
f
−
1
f^{-1}
f
−
1
exists.
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