Sequence with Common Multiplication Ratio
Find nth term and finite sum with common ratio wey you fit change.
Your numbers
Di nth term
Use consistent units. Result follow the assumptions wey you enter.
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Formula
aₙ=a₁r^(n−1); Sₙ=a₁(1−rⁿ)/(1−r), and dem handle r=1 separately.
Find nth term and finite sum with common ratio wey you fit change.
Example wey show the calculation
- Di first term
- 2
- Ratio between terms wey follow each other
- 3
- How many terms
- 5
- Di nth term
- 162
- Sum for the finite number of terms
- 242
Where e fit work and limits
Use consistent units. Result follow the assumptions wey you enter.
We check inputs for missing values and allowed ranges. Result wey pass the finite numeric range no go show. Rounding affect wetin display, while calculation use the model numeric precision.
Check your units and assumptions before you rely on result. Changing label no convert currency or physical unit.
Version of di formula: 34de3ad956ea · Example don get check: