Stuck trying to prove an inequality
119668
How prove this inequality: $\sum_{i,j=1}^{n}|x_{i}+x_{j}|\ge n\sum_{i=1}^{n}|x_{i}|$?
158276
Inequality problem involving square roots
7404
Induction and convergence of an inequality: $\frac{1\cdot3\cdot5\cdots(2n-1)}{2\cdot4\cdot6\cdots(2n)}\leq \frac{1}{\sqrt{2n+1}}$
86940
Proving an inequality in Eigenvalues of a matrix
102019
How to solve inequality $1-\frac{1}{x}\geq 0$ correctly?
157328
A complex analysis problem to prove an inequality
78144
How to prove the inequality $a_1^{a_1}a_2^{a_2}\cdots a_n^{a_n} > \left(\frac{a_1+\dots+a_n}{n}\right)^{a_1+\dots+a_n}$?
118559
Prove the inequality $\sum_{1\le i<j\le n}\sqrt{a_ia_j}<\frac{n-1}2\sum_{i=1}^n a_i$
100048
Got stuck in proving monotonic increasing of a recurrence sequence
134049
Showing an inequality is valid
47072
Proving the inequality $\frac{9}4\ + \frac{3abc}4\ \ge ab+bc+ca$
140857
Using Bernoulli's Inequality to prove an inequality
81800
Prove inequality using Jensen's inequality
66707
How to prove this inequality? $ | z-1 | \le | | z | -1 | + | z| \cdot | \arg z | $
29679
Prove: $|x-y|\leq |x|+|y|$
20863
how do I prove this inequallity?
35001
Prove inequality using Schwarz's Lemma