In Example 6, change 1/2 to 1/3 and then find the sum. Data from Example 6 Find
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In Example 6, change 1/2 to 1/3 and then find the sum.
Data from Example 6
Find the sum of the first seven terms of the geometric sequence for which the first term is 2 and the common ratio is 1/2. We are to find Sn, given that a1 = 2, r = 1/2 and n = 7. Using Eq. (19.6), we have
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S₁ = 2(1 − (4)²) _ 2(1 – 8) 1- 1 = 4 127 128 127 32
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Related Book For
Basic Technical Mathematics
ISBN: 9780137529896
12th Edition
Authors: Allyn J. Washington, Richard Evans
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