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10 cards from this deck
Periodic nature - functions repeat values in cycles
nnn can be any integer: ..., -2, -1, 0, 1, 2, ...
[0,π][0, \pi][0,π]
[−π2,π2][-\frac{\pi}{2}, \frac{\pi}{2}][−2π,2π]
(−π2,π2)(-\frac{\pi}{2}, \frac{\pi}{2})(−2π,2π)
x=2nπ±cos−1(a)x = 2n\pi \pm \cos^{-1}(a)x=2nπ±cos−1(a), n∈Zn \in \mathbb{Z}n∈Z
x=nπ+tan−1(a)x = n\pi + \tan^{-1}(a)x=nπ+tan−1(a), n∈Zn \in \mathbb{Z}n∈Z
x=nπ+(−1)nsin−1(a)x = n\pi + (-1)^n\sin^{-1}(a)x=nπ+(−1)nsin−1(a), n∈Zn \in \mathbb{Z}n∈Z
2π2\pi2π radians
π\piπ radians
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