Question: SHORT ANSWER QUESTIONS. No justification is needed. One mark per correct answer. a) Is every transitive binary relation also symmetric? Answer YES or NO. b)

SHORT ANSWER QUESTIONS. No justification is needed. One mark per correct answer. a) Is every transitive binary relation also symmetric? Answer YES or NO. b) How many vertices are there in a graph where each vertex has degree three and the total degree is 18? c) In a set with four elements, the power set contains how many elements? d) If a partially ordered set contains a minimal element, is it always unique? Answer YES or NO. e) Find the least nonnegative integer k such that 883, 013, 135, kll is divisible by 9

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