Question

An operation * is defined on the set X = {1,3,5,6} by m*n = m + n + 2(mod 7) where m,n € X.
(a) draw a table for the Operation.
(b) using the table , find the truth set of:-
I. 3*n = 3
ii. n*n = 3
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Answer 1

*answer*

Explained the problem

Ans is :43