2 Answered Questions for the topic Counterexamples
For any two integers x and y, |x+y| = |x|+|y|
Im doing a counterexample & conjectures homework, this is tje only one I need to solve and I don't know if it's true. Thanks Djcriss
If two angles are vertical angles, then they are congruent.
Find a counterexample to show that the converse of each conditional is false.