\( f(x)=1+2 x^{2}+4 x^{4}+6 x^{6}+\ldots+2022 x^{2022} \) is polynomial in a real variable \( x ...

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\( f(x)=1+2 x^{2}+4 x^{4}+6 x^{6}+\ldots+2022 x^{2022} \) is polynomial in a real variable \( x \), then \( f(x) \) has
(a) Neither a maximum nor a minimum
(b) Only one minimum
(c) Only one maxima
(d) One maximum and one minimum
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