Write an equation for the nth term of the given geometric sequence.
1. 8, 72, 648, …, an
2. –12, –36, –108, …, an
Find the indicated term of the given geometric sequence.
3. a1 = 11, r = 3.4, n = 7
4. a1 = 5, r = 5, n = 5
Find the geometric means in the following sequence.
5. 8, ?, ?, ?, ?, –25,000
6. 55, ?, ?, ?, ?, –20,421,115
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