Let p≥ 5 be a prime. Let g be a primitive root of p. (i). If g-¹ mod p is the modular inverse of g, prove that g-¹ is also a primitiv root of p. (ii). Prove that g‡ g-¹ (mod p). (Hint: Prove first that g = g-¹ (mod p) implies that g² = 1 (mod p).) iii). Recall that there are ((p)) (p-1) primitive roots of p among {1,2,...,p}. We denote them by 9₁, 92, ..., 96(p-1). Prove that =

Advanced Engineering Mathematics
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ISBN:9780470458365
Author:Erwin Kreyszig
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Chapter2: Second-order Linear Odes
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Let p ≥ 5 be a prime. Let g be a primitive root of p.

- Let p≥ 5 be a prime. Let g be a primitive root of p.
P
(i). If g-¹ mod p is the modular inverse of g, prove that g-¹ is also a primitive
root of p.
(ii). Prove that g ‡ g-¹ (mod p). (Hint: Prove first that g = g-¹ (mod p)
implies that g² = 1 (mod p).)
(iii). Recall that there are (p(p)) (p-1) primitive roots of p among
{1,2,..., p}. We denote them by 9₁, 92, ..., 96(p-1). Prove that
=
o(p-1)
II 9₁ = 1 (mod p).
i=1
Transcribed Image Text:- Let p≥ 5 be a prime. Let g be a primitive root of p. P (i). If g-¹ mod p is the modular inverse of g, prove that g-¹ is also a primitive root of p. (ii). Prove that g ‡ g-¹ (mod p). (Hint: Prove first that g = g-¹ (mod p) implies that g² = 1 (mod p).) (iii). Recall that there are (p(p)) (p-1) primitive roots of p among {1,2,..., p}. We denote them by 9₁, 92, ..., 96(p-1). Prove that = o(p-1) II 9₁ = 1 (mod p). i=1
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