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# precalc

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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.

Oct 15, 2022

#1
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See https://web2.0calc.com/questions/pre-calc-problem#r5

Oct 15, 2022
#2
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Thanks Alan,

That was good revision for me. :)

Oct 15, 2022