Question: 2. [Maximum mark: 5] Given a, b E Z , prove that if a2(b2 - 2b) is odd, then both a and b are odd.

2. [Maximum mark: 5] Given a, b E Z , prove

that if a2(b2 - 2b) is odd, then both a and b

2. [Maximum mark: 5] Given a, b E Z , prove that if a2(b2 - 2b) is odd, then both a and b are odd. [5]

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