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Results tagged with conjectures
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user 62673
for question related to conjectures.
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A seemingly simple inequality
Let $a_i,b_i\in\mathbb{R}$ and $n>1$, does the inequality
$$
\left(\sum_{i=1}^n a_i^2\right)\left(\sum_{i=1}^n b_i^2\right)+\left(\sum_{i=1}^na_i b_i\right)^2\ge \sqrt{\left(\sum_{i=1}^n a_i^4\right) …
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