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  3. 3 in this question quotinvertible means invertible with respect to...

Question: 3 in this question quotinvertible means invertible with respect to...

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3. In this question invertible means invertible with respect to the multiplication of (a) [1 points] Determine all of the invertible clements of Z (b) [3 points Let p be a prime number. Determine the number of the invertible elements of . You should justify your answer (c 3 points lot p be an odd prime number. Show that foreveryk e N, the only elements r E Z such that2 1 in Zpk are 1 and 1 (d) [1 point] Show that part (c) does not hold when p-2.

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