$\frac{4-7.5^x}{5^{2x+1}-12.5^x+4}\leq \frac{2}{3}$
$\frac{4-7.5^x}{5^{2x+1}-12.5^x+4}\leq \frac{2}{3}$
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Started By kieutorres, 19-11-2012 - 19:40
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