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Problem
Problem
Let
f
(
x
)
=
1
+
2
x
2
+
2
2
x
4
+
⋯
+
2
10
x
20
f(x) = 1 + 2x^2 + 2^2x^4 + \dots + 2^{10}x^{20}
f
(
x
)
=
1
+
2
x
2
+
2
2
x
4
+
⋯
+
2
10
x
20
, then
f
(
x
)
f(x)
f
(
x
)
has (a) More than one minimum (b) Exactly one minimum (c) At least one maximum (d) None of these (a) More than one minimum (b) Exactly one minimum (c) At least one maximum (d) None of these
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