A typical Password is a sequence of any four symbols chosen from the 26 letters in the alphabet and the ten digits, with repetition not allowed. How many different passwords are possible? Select one: a. 36*36*36*36 b. 36*35*34*33 c. 26*25*24*23 d. 36+35+34+33
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A computer password consists of four characters. The characters can be one of the 26 letters of the alphabet. Each character may be used more than once. How many different passwords are possible?
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