Help with inequality in three variables subject to one constraint
31257
Let $a,b,c>0$ such that $a+b+c=3$, find max/min of $\frac1{a^2+1}+\frac1{b^2+1}+\frac1{c^2+1}$
53844
How to solve this Complex inequality system
72961
Solving Inequalities with Gamma Function
158704
How to minimize $\sum_{i=1}^p (y_i-x_i)^2$ with constraints $\sum_{i=1}^p y_i - 1 =0$ and $\forall i=\overline{1,p}:-y_i \le 0$?
126032
Proving a certain inequality
104603
Integer program in which at least one of three inequalities holds
143424
Sequence problem involving inequalities
25203
with inequality $\frac{y}{xy+2y+1}+\frac{z}{yz+2z+1}+\frac{x}{zx+2x+1}\le\frac{3}{4}$
56623
Stuck trying to prove an inequality
138490
An inequality with a weird condition
377
Problem involving many squares and several variables.
99810
Maximize violating constraints
24617
Proof of Inequality using AM-GM
126632
Proving Inequalities with Absolute values
99820
symetric inequality for a rational function of three variables
80638
find the minimum value given constraints
140299
Inequality based on triangle: $\frac{3}{2}\le\frac{a}{b+c}+\frac{b}{c+a}+\frac{c}{a+b}<2$