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Martin Sleziak
Martin Sleziak
6:40 AM
6
Q: Prove that $\frac{a}{b+c^2}+\frac{b}{c+a^2}+\frac{c}{a+b^2}\geq \frac{3}{2}$

AndonisRyderMy question: Given $a,b,c$ are positive real numbers satisfy $a+b+c=3.$ Prove that $$\frac{a}{b+c^2}+\frac{b}{c+a^2}+\frac{c}{a+b^2}\geq \frac{3}{2}$$ I have tried to change the LHS to $$\frac{a^2}{ab+ac^2}+\frac{b^2}{bc+ba^2}+\frac{c^2}{ca+cb^2}$$ And using Cauchy–Schwarz inequality for it $$\fr...

inequality cauchy-schwarz-inequality symmetric-polynomials
 

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