I find tan(22.5 degrees) using the half angle formula for tangent.
You may think 22.5 degrees is an unimportant value to find. But your'e wrong. And you don't even know how wrong you really are. This is actually pretty cool. So CHECK IT OUT!!!!
Error correction: I had the wrong decimal value at the end of the video.
I should have said: 0.41421356237...
https://owlsmath.neocities.org/Exact%20Trig%20Values/exact.html
https://owlsmath.neocities.org
