The correct option is option (d) none of these
A polynomial in $x$ of degree $n$ is an expression of the form $p(x)=a_{0}+a_{1} x+a_{2} x^{2}+\ldots \ldots+$ $a_{n} x^{n}$, where $a_{n} \neq 0$.
Which of the following is a polynomial? (a) $x^{2}-5 x+6 \sqrt{x}+3$ (b) $x^{3 / 2}-x+x^{1 / 2}+1$ (c) $\sqrt{x}+\frac{1}{\sqrt{x}}$ (d) None of these
Which of the following is a polynomial? (a) $x^{2}-5 x+6 \sqrt{x}+3$ (b) $x^{3 / 2}-x+x^{1 / 2}+1$ (c) $\sqrt{x}+\frac{1}{\sqrt{x}}$ (d) None of these