# Find the common ratio of an infinite geometric series with the given sum and first term. 1) S =9, a1 = 3 2) S = 2/3, a1 = 1?

• Find the common ratio of an infinite geometric series with the given sum and first term. 1) S =9, a1 = 3 2) S = 2/3, a1 = 1?

... divide a 2 by a 1 to find the common ratio, 2/3. Formulas used with geometric sequences and geometric series: ... 3) to find the actual first term. a 1 ...
Positive: 28 %
... you can take the sum of an infinite geometric ... geometric series with common ratio r ... r = 1/3. They've given me the sum of the first ...
Positive: 25 %

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Find the sum of each of the geometric series given below. ... 1) -6 + 2 - (2/3) + (2/9) - ... ok the first term is -6 and the common ratio is -1/3 so we ...
Positive: 28 %
The sum of the first n terms of a geometric ... where a 1 is the first term and r is the common ratio. ... r = a 2 a 1 = 18 27 = 2 3. Then find the sum: S ...
Positive: 23 %
What is the sum of the infinite geometric series with a1 ... sum of geometric infinite series 3/2+ 9 ... 9 and common ratio is 1/10 then sum up ...