## Excel in math and science

### Master concepts by solving fun, challenging problems.

## It's hard to learn from lectures and videos

### Learn more effectively through short, conceptual quizzes.

## Our wiki is made for math and science

###
Master advanced concepts through explanations,

examples, and problems from the community.

## Used and loved by over 5 million people

###
Learn from a vibrant community of students and enthusiasts,

including olympiad champions, researchers, and professionals.

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}`

## Comments

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TopNewestWon't this be better posed as a problem instead of as a note?

These are interesting questions that you have shared.

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Thank you that you like these problem. I only did these as notes is because I have many of them and I was not sure on the exact answers on them. Also, under my profile, possible to make "My Notes" as a tab under "Solutions" or so? Is there a way I can email you (personally) with all of the questions like this one?

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Ah yes, if you are uncertain of the answer, then they will not work well as problems.

I do not reply personally to questions about specific problems. You will get a much better response from the community.

Thanks for your suggestion about the profile. We will add that to the list of improvements when we redesign the profile page.

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