Which of the following expressions are polynomials in one variable and which are not ? State reasons for your answer. $y+\frac{2}{y}$
Which of the following expressions are polynomials in one variable and which are not ? State reasons for your answer. $y+\frac{2}{y}$
$y+\frac{2}{y}$ $\Rightarrow $ $y+2 \cdot y^{-1}$
$\because $ $(-1)$ is not a whole number.
$\therefore $ $y +2 y ^{-1},$ i.e. $y +\frac{2}{ y }$ is not a polynomial.
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