MediumCounting & chance

OpenStax, Algebra and Trigonometry 2e §13.7 Probability · Exercise 121 · Probability · Counting & chance

Probability · Exercise 121

Write the first four terms of the sequence defined by the explicit formula $a_{n} = \frac{n ^{2} - n -1}{n !} .$

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OpenStax, Algebra and Trigonometry 2e · §13.7 Probability · Exercise 121

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