Just Another Easy Radical Problem

Algebra Level 3

360 360 360 360 360 . . . 360\sqrt{360\sqrt{360\sqrt{360\sqrt{360\sqrt{...}}}}} = ? = ?


The answer is 129600.

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3 solutions

X X
May 16, 2018

36 0 1 + 1 2 + 1 4 + 1 8 + = 36 0 2 360^{1+\frac12+\frac14+\frac18+\cdots}=360^2

Blan Morrison
May 15, 2018

Let x x be equal to the expression in the problem above.

x = 360 x x=360\sqrt{x} x 2 = 129600 x \implies x^2=129600x x = 129600 \implies x=\boxed{129600}

Stefan Popescu
May 15, 2018

On an infinitely nested radical like this, the answer would just be 36 0 2 360^2 , or 129600 129600 .

And this, my friends, is something I discovered all by myself.

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