$\large (2+\sqrt{x^2-2x+5})(x+1)+4x\sqrt{x^2+1}\leq 2x\sqrt{x^2-2x+5}$
$\large (2+\sqrt{x^2-2x+5})(x+1)+4x\sqrt{x^2+1}\leq 2x\sqrt{x^2-2x+5}$
Started By durzaq, 20-09-2013 - 22:45
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