Can someone explain this in a bit more detail? The approach seems really advanced and is not something I would arrive logically.
What am I missing
I had a approach where I just plugged in numbers and it was clear that it has to be either 1 / sqrt (6) or 1 / 4
From here it got a bit messy.
But I estimated sqrt 6 as 2.50 and with
...
What am I missing

I had a approach where I just plugged in numbers and it was clear that it has to be either 1 / sqrt (6) or 1 / 4
From here it got a bit messy.
But I estimated sqrt 6 as 2.50 and with
...