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Question Number 155774 by mathdanisur last updated on 04/Oct/21

$$\mathrm{if}\mathrm{x};\mathrm{y}>0\mathrm{then}\mathrm{prove}\mathrm{that}:$$ $$\frac{{\mathrm{x}}^2{(1+\mathrm{xy})}^2+{\mathrm{x}}^2{\mathrm{y}}^4{(1+\mathrm{x})}^2+{(1+\mathrm{y})}^2}{1+\mathrm{xy}+{\mathrm{x}}^2\mathrm{y}+{\mathrm{xy}}^2}⩾3\mathrm{xy}$$

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