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if-x-y-z-gt-0-such-that-x-y-z-3-and-0-1-then-prove-that-x-y-2-y-z-2-z-x-2-3-1-




Question Number 155069 by mathdanisur last updated on 24/Sep/21
if  x;y;z>0  such that  x+y+z=3  and  0≤𝛌≤1  then prove that:  (x/(y^2 +λ)) + (y/(z^2 +λ)) + (z/(x^2 +λ)) ≥ (3/(λ+1))
$$\mathrm{if}\:\:\mathrm{x};\mathrm{y};\mathrm{z}>\mathrm{0}\:\:\mathrm{such}\:\mathrm{that}\:\:\mathrm{x}+\mathrm{y}+\mathrm{z}=\mathrm{3} \\ $$$$\mathrm{and}\:\:\mathrm{0}\leqslant\boldsymbol{\lambda}\leqslant\mathrm{1}\:\:\mathrm{then}\:\mathrm{prove}\:\mathrm{that}: \\ $$$$\frac{\mathrm{x}}{\mathrm{y}^{\mathrm{2}} +\lambda}\:+\:\frac{\mathrm{y}}{\mathrm{z}^{\mathrm{2}} +\lambda}\:+\:\frac{\mathrm{z}}{\mathrm{x}^{\mathrm{2}} +\lambda}\:\geqslant\:\frac{\mathrm{3}}{\lambda+\mathrm{1}} \\ $$

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