Question: Please answer both parts a and b for this question. a) What is wrong with the following proof that 1=1, using backward reasoning? Assume that

Please answer both parts a and b for this question.

a) What is wrong with the following "proof" that 1=1, using backward reasoning? Assume that 1=1. Squaring both sides yields (1)2=12, or 1= 1. Therefore 1=1. b) Prove using the notion of without loss of generality that 3x+3y is an odd integer when x and y are integers of opposite parity

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