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 alan's answer here :
https://web2.0calc.com/questions/pre-calc-problem
