Saket wrote four different algebraic expressions in his notebook. These are $f(x)=2 x^3-\frac{1}{3} x$ $g(x)=x-\frac{1}{x}+2, h(x)=x^2-2 \sqrt{x}$ and $k(y)=2 y-1$. Q.1. Which of these expressions is / are binomials ? (a) $f(x), g(x), h(x)$ only (b) $f(x), g(x), k(y)$ only (c) $f(x), h(x), h(y)$ only (d) $f(x), h(x)$ only Q.2. Which of these expressions is / are not polynomials ? (a) $f(x), g(x), h(x)$ only (b) $f(x), h(x)$ only (c) $g(x), h(x)$ only (d) $h(x)$ only Q.3. Which of these expressions is/are polynomials in two variables ? (a) $f(x)$ only $\quad$$\quad$(b) $k(y)$ only $\quad$$\quad$$\quad$$\quad$(c) $f(x), k(y)$ only $\quad$$\quad$(d) None of these Q.4. The degree of the polynomial $f(x)$ is : (a) 0$\quad$$\quad$(b) 1 $\quad$$\quad$$\quad$$\quad$(c) 2 $\quad$$\quad$(d) 3
