### Home > CCAA8 > Chapter 5 Unit 6 > Lesson CCA: 5.3.2 > Problem5-108

5-108.

For each sequence defined recursively, write the first 5 terms and then define it explicitly.

1. $t(1)=12$
$t(n+1)=t(n)-5$

Note t(1) is given.

t(1 + 1) = t(1) − 5
or t(2) = 12 − 5

t(2 + 1) = t(2) − 5
or t(3) = 7 − 5

1. $a_1=32$
$a_{n+1}=\frac{1}{2}a_n$

See part (b) of problem 5-106.