In $\displaystyle \mathbb Z_3 $ the equation becomes $\displaystyle q^2 =2 $ because 3,6 and 9 are in the equivalence class of 0.
What are the squares in $\displaystyle \mathbb Z_3 $?
In $\displaystyle \mathbb Z_3 $ the equation becomes $\displaystyle q^2 =2 $ because 3,6 and 9 are in the equivalence class of 0.
What are the squares in $\displaystyle \mathbb Z_3 $?
In $\displaystyle \mathbb Z_3 $ the equation becomes $\displaystyle q^2 =2 $ because 3,6 and 9 are in the equivalence class of 0.
What are the squares in $\displaystyle \mathbb Z_3 $?
Here when you say q^2=2, do you mean q^2 is congruent to 2(mod3)?