CamBroOkaii2980 CamBroOkaii2980
  • 07-03-2024
  • Mathematics
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Identify the rules used to calculate the number of strings of lowercase letters of length four or less, not counting the empty string
a) 26⁴ + 26³ + 26² + 26
b) 26⁴ + 26³ + 26²
c) 26⁴ + 26³
d) 26⁴

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