Mathematics, 06.08.2021 18:50 Wildstyle3000
Let a1, a2, . . . , a2019 be a sequence of real numbers. For every five indices i, j, k, `, and m from 1 through 2019, at least two of the numbers ai , aj , ak, a` , and am have the same absolute value. What is the greatest possible number of distinct real numbers in the given sequence
Answers: 1
each with different absolute values, but that would contradict the given statement "for every five indices ... at least two of ... have the same absolute value".)
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Let a1, a2, . . . , a2019 be a sequence of real numbers. For every five indices i, j, k, `, and m fr...
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