Write the inverse of 5 under multiplication modulo 11 on the set {1, 2, …, 10}.
From the definition of multiplication modulo
a*b = (m is the base of the modulo)
Here the base is 11 and the set is {1,2,…,10}
So, we can make the composition table as :-
Thus, the identity element is 1.
So, the inverse of 5 is 9.