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New posts in Jensen Inequality
Proof that if $x,y>0$ and $x+y=1$, then $(2x)^{\frac 1 x}+(2y)^{\frac 1 y}\leq 2$
May 09, 2021
If $f'' \ge 0$, $\int_0^2 f(x)dx \ge 2f(1)$
May 08, 2021
Prove that $\sum \frac{x}{x^2+7}\le \frac{3}{8}$
May 07, 2021
An inequality for polynomials with positives coefficients
May 07, 2021
Prove that $\left ( 1+\frac{n^{\frac{1}{n}}}{n} \right )^\frac{1}{n}+\left ( 1-\frac{n^{\frac{1}{n}}}{n} \right )^\frac{1}{n}<2$
May 07, 2021
Nice olympiad inequality :$\frac{xy^2}{4y^3+3}+\frac{yz^2}{4z^3+3}+\frac{zx^2}{4x^3+3}\leq \frac{3}{7}$
May 07, 2021
Inequality : $\Big(\frac{x^n+1+(\frac{x+1}{2})^n}{x^{n-1}+1+(\frac{x+1}{2})^{n-1}}\Big)^n+\Big(\frac{x+1}{2}\Big)^n\leq x^n+1$
May 07, 2021
tangent inequality in triangle
May 07, 2021
Maximum value of expression $a+b+c$
May 06, 2021
A conjecture about power sum : $e^{ab}+e^{bc}+e^{ca}\geq 3e^{\sqrt{abc}}$ and $a+b+c=3$
May 05, 2021
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