## 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

Sort by:

TopNewestRofl.

Log in to reply

Ah , Never thought of this :P

Log in to reply

Lolfication of Infinity.Haha

Log in to reply

That's a great proof! But you can even create a question in the logic section based on this.

Log in to reply

That's the brilliant mind! it boosted my interest in maths!!

Log in to reply

Congratulations on having one of the only comments with more upvotes then downvotes.

Log in to reply

haha btw thanx for that!!!

Log in to reply

!! <3 maths

Log in to reply

You rocked it !!

Log in to reply

That's the beauty of maths!! ❤️

Log in to reply

Truly

Log in to reply

Best proof EVER!!!!

Log in to reply

XDDDDDDDDD LOLLLLLLLLLLLL!!!!!!

Log in to reply

You sir, just won the internet today. Congrats.

Log in to reply

epic !!

Log in to reply

Amazed by your imagination

Log in to reply

My two favorite things: maths and trolling. ;)

Log in to reply

This is just awesome

Log in to reply

This was a nice one!

Log in to reply

I wonder what would happen if you showed this at school?

Log in to reply

innovative

Log in to reply

HAHAHA!!!!!!!!!!!

Log in to reply

You need to add periods in the title to make emphasis.

Pretty trolly though

Log in to reply

i think the inventor of this needs to get married asap!!

Log in to reply

nice work

Log in to reply

Whoever is making alts and downvoting everyone, you have no life :P Lets see how many downvotes that'll get me. 110? 120? Have a field day :D

Log in to reply

great!!!

Log in to reply

each and every comment has downvotes more than upvotes

Log in to reply

Mine is an exception haha!

Log in to reply

Probably that's also a troll! they want us to rotate it by 180 degrees

Log in to reply

lmaooo

Log in to reply

milf

Log in to reply

Whoa, Is it Original ?

How did you come up with it!!!!

Log in to reply

Doubt it's original. I've seen it on Brilliant multiple times.

Log in to reply

hahahaha this is the best proof ive ever seen....

Log in to reply

Really a great idea to use Physics in proving mathematics rules usually we do converse of it...

Log in to reply

No need to think out of the box if u rotate it

Log in to reply

Why has every comment received so many downvotes?

Log in to reply

And the funny thing is that this comment itself has 10 downvotes.

Log in to reply

I couldn't stop laughing, each and very comment has got soooo many downvotes.

Log in to reply

Log in to reply

Woah!! Best Proof Ever.

Log in to reply

Lol

Log in to reply

Comment deleted Feb 10, 2016

Log in to reply

It's for people who don't know cross multiplication.

Log in to reply

Your proof is bad but your handwriting is cool!!

Log in to reply

Let's see you do better. c:

Log in to reply

Cool! I loved the way you did it, I hope we can use such a beautiful method in our exams lol! \(\huge\ddot\smile\)

Log in to reply

Very nice and ingenious proof!!!

Log in to reply

1= sqrt(1) = sqrt(-1

-1) = sqrt(-1) * sqrt(-1) = ii = -1 transitive property: 1=-1 lolLog in to reply