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Check it outGeometric Series  Problem 9 101 views
The capital Greek letter Sigma is used to represent a sum. The number on the bottom of the sigma tells you the lowest value to substitute in for the variable, and the value on top tells you the last value to substitute. Start by plugging in the bottom value to find the first term in your series, then plug in the next integer, and so on until you either have all of your terms listed or enough terms to be confident that you have the r value as well as the first term. From there, you can use the formula for a finite geometric series to evaluate the sum.
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Sample Problems (14)
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Geometric Series
Problem 1 6,430 views1 + 1 + 3 + ... 6 2 2 Find S_{7} 
Geometric Series
Problem 2 5,320 viewsSum:
5 + 15 + 45 + ... 4 16 
Geometric Series
Problem 3 4,891 views_{7} ∑ 8(½)^{n} ^{i = 2} 
Geometric Series
Problem 4 147 views 
Geometric Series
Problem 5 107 views 
Geometric Series
Problem 6 108 views 
Geometric Series
Problem 7 105 views 
Geometric Series
Problem 8 93 views 
Geometric Series
Problem 9 100 views 
Geometric Series
Problem 10 98 views 
Geometric Series
Problem 11 108 views 
Geometric Series
Problem 12 85 views 
Geometric Series
Problem 13 102 views 
Geometric Series
Problem 14 109 views
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