Question

Write

(i) the coefficient of $x^3$ in $x+3x^2-5x^3+x^4$

(ii) the coefficient of $x$ in $\sqrt{3}-2\sqrt{2}x+6x^2$

(iii) the coefficient of $x^2$ in $2x-3+x^3$

(iv) the coefficient of $x$ in $\frac{3}{8}{x}^2-\frac{2}{7}x+\frac{1}{6}$

(v) the constant term in $\frac{\pi }{2}{x}^2+7x-\frac{2}{5}\pi$

Answer 1

(i) -5

(ii) $-2\sqrt{2}$

(iii) 0

(iv) $-\frac{2}{7}$

(v) $-\frac{2}{5}\pi$