cos x = √3/2
x = ± π/6 + 2πk, k ∈ Z
180° = π
π/n = ± π/6 + 2πk
1/n = ± 1/6 + 2k
n = 1/(± 1/6 + 2k)
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cos x = √3/2
x = ± π/6 + 2πk, k ∈ Z
180° = π
π/n = ± π/6 + 2πk
1/n = ± 1/6 + 2k
n = 1/(± 1/6 + 2k)