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Notes 8-1

by Jimbo Lamb on Apr 14, 2008

Formulas for Sequences

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SECTION 8-1 Formulas for Sequences
WARM-UP Write the ﬁrst six terms of each sequence. ⎧a1 = 2 ⎪ 1. ⎨ ⎪an = an−1 + 2n −1, for int n ≥ 2 ⎩ 2. an = n +1, for int n ≥1 2 3. What do you notice about your answers for 1 and 2?
WARM-UP Write the ﬁrst six terms of each sequence. ⎧a1 = 2 ⎪ 1. ⎨ ⎪an = an−1 + 2n −1, for int n ≥ 2 ⎩ a1 = 2, a2 = 5, a3 = 10, a4 = 17, a5 = 26, a6 = 37 2. an = n +1, for int n ≥1 2 3. What do you notice about your answers for 1 and 2?