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limit question (1 Viewer)

Thread starter Mahan1
Start date Feb 19, 2017

Mahan1

Member

Feb 19, 2017

Suppose
$A= 2^{n}\underbrace{\sqrt{2-\sqrt{2+\sqrt{2+...+\sqrt{2+2cos\alpha}}}}}_{n \ times}$

then simplify A in terms of $n$ and $\alpha$ , then find

$lim_{n\to\infty}A$

Last edited: Feb 21, 2017

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