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Mathematics, 21.01.2020 01:31 hallee25
How many different four-digit numbers greater that 4000 can be formed from the digits {3, 4, 8, 9}, if : a. repetition is allowed b. repetition is not allowed.
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How many different four-digit numbers greater that 4000 can be formed from the digits {3, 4, 8, 9},...
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