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Home > CC4 > Chapter 5 > Lesson 5.3.1 > Problem 5-87

5-87.

Write the first five terms of of each recursively-defined sequence. Homework Help ✎

  1. t(1) = −3
    t(n + 1) = −2 · t(n)

  2. t(1) = 8
    t(n + 1) = t(n) − 5

  3. t(1) = 2
    t(n + 1) = (t(n))−1

−3, 6, −12, 24, −48

Substitute 8 for t(n) in the second equation to find
t(n + 1), which is t(2).
t(2) = (8) − 5
t(2) = 3

8, 3, −2, −7, −12