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ntpkim.abc9htkhang
2 năm trước
Cho $a,b,c>0$,$a+b+c=2$.Tìm min:$P= \sqrt{a^2+\frac{1}{a^2}+\frac{1}{b^2}}+\sqrt{b^2+\frac{1}{b^2}+\frac{1}{c^2}}+\sqrt{c^2+\frac{1}{c^2}+\frac{1}{a^2}}$
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