Exemplar Exercise Problems V — task. Mathematics CBSE, Class 9.

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Which of the following expressions are polynomials? Justify your answer:

\frac{1}{7} a^{3} - \frac{2}{\sqrt{3}} a^{2} + 4 a - 7

2. \(\frac{1}{2x}\) is

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13. Exemplar Exercise Problems V