6. You need to select a three-character password for a new online bank account. The rules are: you can use any uppercase
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6. You need to select a three-character password for a new online bank account. The rules are: you can use any uppercase
6. You need to select a three-character password for a new online bank account. The rules are: you can use any uppercase letter A-Z, any lowercase letter a-z, and any of the ten digits 0-9. Repetitions are not allowed. How many different three-character passcodes can you create?
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