OpenStax, Algebra and Trigonometry 2e §13.7 Probability · Review Exercise 63 · Probability · Counting & chance

Probability · Review Exercise 63

Write the first four terms of the sequence defined by the recursive formula $a_{1} = 2, a_{n} = a_{n - 1} + n .$

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OpenStax, Algebra and Trigonometry 2e · §13.7 Probability · Review Exercise 63

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