Write (i) the coefficient of x3 in x+3x2−5x3+x4 (ii) the coefficien

1.	Write (i) the coefficient of x3 in x+3x2−5x3+x4 (ii) the coefficient of x in √3−2√2x+6x2 (iii) the coefficient of x2 in 2x−3+x3 (iv) the coefficient of x in 38x2−27x+16 (v) the constant term in π2x2+7x−25π
Answer» Write (i) the coefficient of $x^{3}$ in $x + 3 x^{2} - 5 x^{3} + x^{4}$ (ii) the coefficient of $x$ in $\sqrt{3} - 2 \sqrt{2} x + 6 x^{2}$ (iii) the coefficient of $x^{2}$ in $2 x - 3 + x^{3}$ (iv) the coefficient of $x$ in $\frac{3}{8} x^{2} - \frac{2}{7} x + \frac{1}{6}$ (v) the constant term in $\frac{π}{2} x^{2} + 7 x - \frac{2}{5} π$

Write (i) the coefficient of x3 in x+3x2−5x3+x4 (ii) the coefficient of x in √3−2√2x+6x2 (iii) the coefficient of x2 in 2x−3+x3 (iv) the coefficient of x in 38x2−27x+16 (v) the constant term in π2x2+7x−25π

Answer»

Write

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

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

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

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

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