ok so first we must determine what the square root of "fuck all" is in english and then just translate that into Korean as best as we can. Shall we?

according to the trusty urban slang dictionary audioenglish.net, the term "fuck all" is defined as: little or nothing at all. we all know that little is better then nothing at all so we will use the greater of two numbers.

But how really little is little you might ask? after all a typical korean penis is little only to the american or african woman and comparably satisfactory to the korean, chinese or a japanese woman. so we shall first determine how little is little.

little is equivalent to small and since small does not equal smallest, we shall use the median between; small 10-1 or 0.1 & smallest 10-24 The median in this case would be 10-12

or 0.0000000000001

now take 0.0000000000001 and square root that!

You get: 3.16227766e-7

Now say this in korean and bingo, you have the square root of "fuck all" in korean.

Glad i can help