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

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

   Answer (a):

   $−3, 6, −12, 24, −48$

2. $t(1) = 8$
   $t(n + 1) = t(n) − 5$

   Hint (b):

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

   Answer (b):

   $8, 3, −2, −7, −12$

3. $t(1) = 2$
   $t(n + 1) = (t(n))^{−1}$

   Answer (c):

   $2, \frac{1}{2}, 2, \frac{1}{2}, 2$