Mathematics, 24.02.2021 21:20 christheicebear

How many four-digit numbers may be formed using elements from the set {1, 2, 3, 4, 5, 6, 7, 8} if no element may be used more than once in a number, and the number must be even?

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How many four-digit numbers may be formed using elements from the set {1, 2, 3, 4, 5, 6, 7, 8} if no...