# The Answer is Not $\frac{ 3}{ \sqrt{2} }$

Over all positive triples of real numbers, what is the largest value of $k$ (to 2 decimal places) such that

$\sqrt{ \frac{a} { b+c} } + \sqrt{ \frac{b}{ c + a }} + \sqrt{ \frac{ c}{a+b} } \geq k ?$

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