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Course: Integrated math 1?>?Unit 12
Lesson 4: Constructing geometric sequences- Explicit & recursive formulas for geometric sequences
- Recursive formulas for geometric sequences
- Explicit formulas for geometric sequences
- Converting recursive & explicit forms of geometric sequences
- Converting recursive & explicit forms of geometric sequences
- Geometric sequences review
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Explicit formulas for geometric sequences
Problem
Wang Lei and Amira were asked to find an explicit formula for the sequence , where the first term should be .
Wang Lei said the formula is , and
Amira said the formula is .
Which one of them is right?