Prove or Disprove the following Let x,y. If x + xy + 1 is even then...

Question

Question

Prove or Disprove the following

Let x,y $\epsilon Z$ . If x + xy + 1 is even then x is odd

Answer 1

Answer #1

be porove this 8tatement by using contra pasitive way, ie, we ponove that, then ty+1 i8 odd (not euen) i8 euen Cnot odd) ta t

Answer 2

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