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hope you are safe and well! i was doing my practice questions and I got stuck, thank you so much in advance!

[Practice Question 4] The following two statements, and prove it by CONTRADIC-TION. You need to clearly mark your choice. Rem
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(A) 21 n3+5 Lut n is eren. » n3 is even. n3ts will be odd. n is odd. (B) a, b, c ez, alb, axc. Let al (btc) alb bto=ma, MEN 7

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