Squares

Algebra Level 3

(aa+2b)2+(bb+2c)2+(cc+2a)2\large \bigg(\frac{a}{a+2b}\bigg)^2+\bigg(\frac{b}{b+2c}\bigg)^2+\bigg(\frac{c}{c+2a}\bigg)^2

If a,ba,b and cc are positive reals, find the minimum value of the expression above to 2 decimal places.

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