Sum when r is less than 1
Essential Mathematics · Grade 11 · about 40 minutes
Use the alternative GP sum formula when the common ratio is between 0 and 1.
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- 8 sections of explanation, worked examples and diagrams
- 1 practice task with hints and worked answers
- A quiz that marks itself as you go
- Your progress kept across every subject you take
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- The sum formula
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- Sequences: mixed review