Let prime p and any a∈Z so that a ≡/0 mod p
ap-1 ≡ 1 mod p.
- eix = cos x + i sin x
- eiπ = cos π + i sin π
- eiπ = – 1 + i x 0
- eiπ = – 1
- eiπ + 1 = 0
Let prime p and any a∈Z so that a ≡/0 mod p
ap-1 ≡ 1 mod p.
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