/sci/ - Science & Math

Lurk more my little faggot. Maybe one day you'll be a true troll.
Lol just kidding faggot.

>mfw that thread

>>1955123
>but I just couldnt solve it no matter what I did.
<div class="math">n\sum_{j=1}^{n}x_j^2 - \left( \sum_{j=1}^{n}|x_j| \right) ^2 = n\sum_{j=1}^{n}x_j^2 - \sum_{i=1}^{n}\sum_{j=1}^{n}x_i x_j = \frac{1}{2}\left( \sum_{i=1}^{n}\sum_{j=1}^{n} \left( x_i^2 - x_i x_j \right ) + \sum_{i=1}^{n}\sum_{j=1}^{n} \left( x_j^2 - x_i x_j \right ) \right ) = \frac{1}{2}\sum_{i=1}^{n}\sum_{j=1}^{n} \left( x_i^2 - 2x_i x_j + x_j^2 \right ) = \frac{1}{2}\sum_{i=1}^{n}\sum_{j=1}^{n} \left( x_i - x_j \right )^2 </div>

>>1372566
>still believes in "theory" of gravity

>namefag
>no tripcode

>>1206656
>>1206675
>samefag bumping his thread from page 2
>epic fail, OP, epic fail

>>1177598

>cancer making robots