Let A = {2, 3, 4, 5} and B = {6, 8, 10}. A relation R is defined from A to B by a R b if a | b and (b/a)+1 is a prime. (a) Is Ra function from A to B? (b) If R is a function from A to B, then determine whether this function is one-to-one and/or onto.

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