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y56y45tc

y56y45tc

Member Since 06-12-2018
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Min: $R=3a^2+b^2+c^2$

14-06-2021 - 15:23

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$x^3+y^3 \leq 2 \sqrt{2}$

15-12-2018 - 22:42

Cho $x,y \geq 0,x^2+y^2=2.$ Chứng minh $x^3+y^3 \leq 2 \sqrt{2}.$


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