The Last B.O.B. of the Year (Interesting Point)

What I found really interesting is the arcsine or the inverse of sine is not the same as sine to the -1 power.  I had used arcsine several times in my past homeschooling to solve for angles and I didn't find it very difficult but I had always just assumed it was the same as sine to the -1 power and I found it very surprising to be otherwise.