Question

In Exercises 5 - 8, find the indicated term of each sequence given. 5) $a_n = left(frac{1}{2} ight)^n$ $a_9 = ?$ 6) $a_n = frac{(n+1)^2}{n-9}$ $a_{14} = ?$ 7) $a_n = frac{(-1)^{n+1}(n-1)(n+2)}{n}$ $a_7 = ?$ 8) $a_n = left(frac{n}{9} - 12 ight)^n$ $a_{99} = ?$ In Exercises 9 - 12, write an expression for the $n^{th}$ term of the given sequence. Assume n starts at 1. 9) 2, 4, 6, 8, 10,... 11) 3, 9, 27, 81,... 10) 1, -1, 1, -1, 1,... 12) $frac{1}{2 cdot 1}, frac{1}{3 cdot 2}, frac{1}{4 cdot 3}, frac{1}{5 cdot 4}, frac{1}{6 cdot 5},...$

          In Exercises 5 - 8, find the indicated term of each sequence given.
5) $a_n = left(frac{1}{2}
ight)^n$  $a_9 = ?$
6) $a_n = frac{(n+1)^2}{n-9}$  $a_{14} = ?$
7) $a_n = frac{(-1)^{n+1}(n-1)(n+2)}{n}$  $a_7 = ?$
8) $a_n = left(frac{n}{9} - 12
ight)^n$  $a_{99} = ?$
In Exercises 9 - 12, write an expression for the $n^{th}$ term of the given
sequence. Assume n starts at 1.
9) 2, 4, 6, 8, 10,...
11) 3, 9, 27, 81,...
10) 1, -1, 1, -1, 1,...
12) $frac{1}{2 cdot 1}, frac{1}{3 cdot 2}, frac{1}{4 cdot 3}, frac{1}{5 cdot 4}, frac{1}{6 cdot 5},...$

$In Exercises 5 - 8, find the indicated term of each sequence given. 5) an = left(frac12 ight)^n a9 = ? 6) an = frac(n+1)^2n-9 a14 = ? 7) an = frac(-1)^n+1(n-1)(n+2)n a7 = ? 8) an = left(fracn9 - 12 ight)^n a99 = ? In Exercises 9 - 12, write an expression for the n^th term of the given sequence. Assume n starts at 1. 9) 2, 4, 6, 8, 10,... 11) 3, 9, 27, 81,... 10) 1, -1, 1, -1, 1,... 12) frac12 cdot 1, frac13 cdot 2, frac14 cdot 3, frac15 cdot 4, frac16 cdot 5,...$

Added by Troy C.

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