- #1
j9mom
- 31
- 0
Homework Statement
if (a,c)=1 and (b,c)=1 prove that (ab,c)=1
Homework Equations
I know that (a,c)=1 says that au+cv=1 and bs+ct=1 prove abq+cr=1
The Attempt at a Solution
I set au+cv=bs+ct now I don't know what to do