Problem 30 of 7
Write a recursive geometric sequence rule for the terms -4, -16, -64, -256.
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identify first term and common ratio.
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Terms must have a constant nonzero ratio.
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Solution
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1. Find the first term.
2. Divide each term by the previous term to find the common ratio.
3. Write a_n = r*a_(n-1).
Use the worked steps, then substitute the final answer back into the original relationship to confirm it satisfies the prompt.
Arithmetic difference rule for geometric terms.