State whether the following expression is polynomial or not. In case of a polynomial, write its degree.
$\frac{- 3}{5}$ .

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Solution

Given expression can be written as $\frac{- 3}{5} y^{0}$ .
∵ The exponent of $y$ is whole number and the highest exponent of $y$ is $0.$
It is a polynomial of degree $0$ .

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