Repeated applications of cos function converges around $0.7390851$
68518
What does recursive cosine sequence converge to?
67006
Sequence of functions: Convergence
152280
An absolute convergence criterion in $\Bbb C$
48763
Convergence of $\sum_{n=1}^\infty \frac{\cos(n)}{n}$
20263
Convergence of a Sequence Involving arctan - Is my solution correct?
162
Determine the convergence of $ \sum_{n=1}^{\infty}\left[1-\cos\left(1 \over n\right)\right] $
14680
$\prod_{k=1}^n (1+ \frac{z}{k})$ converges to $0$ when $\Re (z)<0$
15583
Finding the limit of $(1-\cos(x))/x$ as $x\to 0$ with squeeze theorem
141053
Convergence rate of Newton's method
135895
Proving the bounds of cosine
106867
Limit of $\cos(x)/x$ as $x$ approaches $0$
74439
Convergence of averging series
122145
Evaluating Limit - $(1-(\cos x)^{\sin x})/(x^3)$
77239
Limit point versus limit and implications for convergence
15031
Convergence test of the series $\sum\sin100n$
41862
Asymptotic behavior of a trigonometric series
58475
Does $\int_0^\infty |\cos(x^2)| \mathrm dx$ converge?