Question

Write convincing argument that used inderect reasoning: the product of two numbers is even. Show that at least one of the numbers must be even

Answer 1

i assume indirect reasoning in this case means a proof by contradiction

Answer 2

in which case you would assume that the product is even and both the numbers were odd, and derive the contradiction

Answer 3

clear or no?
two general odd numbers look like \(2k+1\) and \(2j+1\)
multiply them together and deduce that the product is odd

Answer 4

Nice.