The coefficient of $x^n$ in the expansion of $$\frac{2-3{x}}{2x^2-3x+1} $$
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Find the coefficientof $x^n$ in the expansion of $\frac{2-3{x}}{2x^2-3x+1}$
-1
$\begingroup$
binomial-coefficients
multinomial-coefficients
1 Answers
2
Wite $$\frac{2-3x}{(1-x)(1-2x)}=\frac{1}{1-x}+\frac{1}{1-2x}$$ and use binomial coefficients.