I didn't get it from any specific thread. I just noticed you always post stuff from Central Asia. You also speak Russian, but said your not "Russian" Theres also a lot of immigrants from the former Soviet Union living in NYC, they speak Russian and are Jewish. So I took 1, found the derivative, the sin and cosine, and the limit and puzzled it all together

So that be you. i'm quite smart.

Lets see you find out which tribe I am from.