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anemone
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Prove \(\displaystyle \frac{ab}{a+b+ab}+\frac{bc}{b+c+bc}+\frac{ca}{c+a+ca}\le \frac{a^2+b^2+c^2+6}{9}\) for all positive real $a,\,b$ and $c$ and $a,\,b,\,c\ne 0$.
anemone said:Prove \(\displaystyle \frac{ab}{a+b+ab}+\frac{bc}{b+c+bc}+\frac{ca}{c+a+ca}\le \frac{a^2+b^2+c^2+6}{9}\) for all positive real $a,\,b$ and $c$ and $a,\,b,\,c\ne 0$.
The inequality challenge for all positive (but not zero) real a, b, and c is a mathematical problem that involves finding the minimum value of the expression (a + b + c)^2 / (ab + bc + ca).
This inequality challenge is unique because it involves finding the minimum value of an expression instead of solving for a specific value or variable.
The restriction on the values of a, b, and c being positive (but not zero) ensures that the expression is always defined and avoids any division by zero errors.
Yes, this inequality challenge can be solved using various techniques such as the AM-GM inequality, Cauchy-Schwarz inequality, or substitution methods.
This inequality challenge can be applied in various fields of science such as economics, physics, and statistics to find the minimum value of a given expression and optimize certain parameters. It can also be used in optimization problems and in proving other mathematical inequalities.