Question

y+1/y is: Polynomial of degree1 Polynomial of degree 2 Polynomial of degree 3 not a Polynomial

Answer 1

$$\begin{gathered} \mathrm{The}\mathrm{given}\mathrm{expression}\mathrm{is} \\ \mathrm{y}+\frac{1}{\mathrm{y}} \\ =\mathrm{y}+{\mathrm{y}}^{-1} \\ \mathrm{Since},\mathrm{the}\mathrm{power}\mathrm{of}\mathrm{the}\mathrm{variable}\mathrm{is}\mathrm{a}\mathrm{negative}\mathrm{number}.\mathrm{The}\mathrm{given}\mathrm{expression}\mathrm{is} \\ \mathrm{not}\mathrm{a}\mathrm{polynomial}. \end{gathered}$$