Thread: logic sets help

can anyone do this question?

Hey

Do you know what Z6 means? What exactly is your question?

(1*1) mod 6 = 1
(1*2) mod 6 = 2
....
(1*5) mod 6 = 5

(2*1) mod 6 = (1*2) mod 6 = 2
(2*2) mod 6 = 4
(2*3) mod 6 = 6 mod 6 = 0
(2*4) mod 6 = 8 mod 6 = 2
(2*5) mod 6 = 10 mod 6 = 4

....

and so on.
Does it help?

Regards, Rapha

Hello, srk619!

Rapha is right . . .
You're expected to know what means.
If you don't, you shouldn't have been assigned this problem.

Give the multiplication table for

and hence find all solutions to: . or explain why there are none.

. .


The values for are on the main diagonal,

. . where we see that: .


Therefore: .

the question is part of Integers, Congruence arithmetic

its something like what is in the diagram