Question

Question 2
Write the coefficients of $x^2$ in each of the following:
(i) $2+x^2+x$
(ii) $2-x^2+x^3$
(iii) $\frac{\pi }{2}{x}^2+x$
(iv) $\sqrt{2x}-1$

Answer 1

(i) In $2+x^2+x,$ coefficient of $x^2$ is 1.

(ii) In $2+x^2+x,$ coefficient of $x^2$ is - 1.

(iii) $\frac{\pi }{2}{x}^2+x$, coefficient of $x^2$ is $\frac{\pi }{2}$.

(iv) $\sqrt{2x}-1,x^2$ is not present. Hence, no coefficient.