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I am trying to work through the following problem, and don't know where to start:
I know that a, b are nonzero integers with gcd(a, b) = 1.
I need to compute the gcd (a + b, a - b).
Any help?
I know that a, b are nonzero integers with gcd(a, b) = 1.
I need to compute the gcd (a + b, a - b).
Any help?