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GO Classes Weekly Quiz 1 | General Aptitude | Question: 6
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Evaluate $1+2x+3x^2+4x^3+\dots$ upto infinity, where $|x|<1$.
$\frac{1}{(1-x)^2}$
$\frac{x}{(1-x)^2}$
$\frac{x^2}{(1-x)^2}$
$1-\frac{1}{(1-x)^2}$
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