Write explicit formula & constant ratio for a sequence
Find the constant ratio, write the explicit formula, and find the seventh term for the following geometric sequence: 3, 1.5, 0.75, 0.375, …
- Find the constant ratio by dividing two successive terms.
- Confirm that the ratio is the same between all of the terms.
- Identify the first term .
- Write the explicit formula.
- To find the seventh term, substitute 7 for .