Let Zg = {0,1,2,3,4,5,6,7}. Denote by xg the operation "multiplication modulo 8" where a xg b is the remainder when a × b is divided by 8. 3a) The identity element of Zg under X8 is 3c) Determine the inverse of each of the following elements of Zg with respect to Xg. Element of Z Inverse with respect to X8 3 5 7

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