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Mathematics, 04.06.2021 15:30 liliaboop9325

To log on to a certain computer account, the user must type in a 4 -letter password. In such a password, no letter may be repeated, and only the lower case of a letter may be used. How many such 4 -letter passwords are possible? (There are 26 letters in the alphabet.)

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To log on to a certain computer account, the user must type in a 4 -letter password. In such a passw...
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