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Coefficient of a Term

iii Write the...

Question

Question 54 (iii)

Write the coefficient of $x^{2}$ in the following:

$1 + 2 x + 3 x^{2} + 4 x^{3}$

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Solution

Coefficient of $x^{2}$ in $1 + 2 x + 3 x^{2} + 4 x^{3} i s 3.$

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Similar questions

(1 - 2 x + 3 x^{2} - 4 x^{3} + . . . .

\infty)^{4}

x^{2}

Write the coefficient of $x^{2}$ in the following:

$x^{2} - x + 4$

Question 54 (iv)

Write the coefficient of $x^{2}$ in the following:

$y + y^{2} x + y^{3} x^{2} + y^{4} x^{3}$

x^{n}

{(1 - 2 x + 3 x^{2} - 4 x^{3} + . . .)}^{- n}

x^{3}

\frac{3}{4} x^{3} + 2 x - 3

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