Which of the following expressions are polynomials-i x2-4ii 4- x -1iii 2 x 2-2- xA- ii- iiiB- iiiC- iD- i- ii- iii

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Polynomial

Which of the ...

Question

Which of the following expressions are polynomials?
(i) $x^{2} + 4$
(ii) $4 - x^{- 1}$
(iii) $2 x^{2} - \frac{2}{x}$

i, ii, iii

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ii, iii

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iii

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Which of the following expressions are polynomials?
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