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प्रश्न
Identify the following expression is polynomial. If not give reason:
`1/(x^(-2)) + 1/(x^(-1)) + 7`
उत्तर
`1/(x^(-2)) + 1/(x^(-1)) + 7` is a polynomial ............`(1/(x^(-2)) = x^2 and 1/(x^(-1)) = x)`
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