Instead of the following items will be problems, the following items will be notes.

Your goal is to interpret the problem and put his explanation on how to do, what you do it, or what not to do.

The start sounds complicated but is very simple. The purpose of this set is to see the reasoning for each one. In the end I will say if your answer is right or not.

All questions were taken from the OBMEP (Brazilian Math Olympiad of Public Schools) site. Such questions are from the phase 2, that instead of being multiple-choice these questions are essay.

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Easy Math Editor

`*italics*`

or`_italics_`

italics`**bold**`

or`__bold__`

boldNote: you must add a full line of space before and after lists for them to show up correctlyparagraph 1

paragraph 2

`[example link](https://brilliant.org)`

`> This is a quote`

Remember to wrap math in \( ... \) or \[ ... \] to ensure proper formatting.`2 \times 3`

`2^{34}`

`a_{i-1}`

`\frac{2}{3}`

`\sqrt{2}`

`\sum_{i=1}^3`

`\sin \theta`

`\boxed{123}`

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