[tex] \mathbb{X}[/tex] gives .
You can replace the X with whatever.
some how using the fact that integers a and b are coprime if, and only if, there exist
integers m and n such that i am trying to find:
m and n to show that
(i) 41 and 68 are coprime, (ii) 71 and 118 are coprime.
i also have to prove:
and are coprime for all
p.s. if anyone knows how you do those symbols for integers, real numbers and rational numbers on latex that would be useful!
thanks