Calculate \[ \arccos \sqrt{\cfrac{1-\sqrt{\cfrac{1-\sqrt{\cfrac{1-\sqrt{\cfrac{1+\cfrac{\sqrt{3}}{2}}{2}}}{2}}}{2}}}{2}}.\] As usual, the output of an inverse trig function should be in radians.
See https://web2.0calc.com/questions/pre-calc-problem#r5
Thanks Alan,
That was good revision for me. :)
