New posts in Irrational Numbers

Using the fact that $\sqrt{n}$ is an irrational number whenever $n$ is not a perfect square, show $\sqrt{3} + \sqrt{7} + \sqrt{21}$ is irrational.

Are there any irrational/transcendental numbers for which the distribution of decimal digits is not uniform?

Why does this iterative way of solving an equation work?

Approximating $\frac {\log(5/4)}{\log(3/2)}$ to a rational number

Why is Euler's number $2.71828$ and not anything else?

Proving irrationality of $\sqrt[3]{3}+\sqrt[3]{9}$

Prove that $\sqrt[3]{5} + \sqrt{2}$ is irrational

Example of a concrete irrationality test

Proof that $\sqrt[3]{17}$ is irrational

Why is $\sum_{i=1}^n a$ always irrational if $n>0$ and $a$ is irrational?