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OpenStudy (anonymous):
What is the ‘r’ value of the following sequence: 6, -18, 54, -162…?
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hartnn (hartnn):
'r' is the common ratio for the geometric sequence r = 2nd term/ 1st term = 3rd term/ 2nd term = ..... can you now find 'r' here ?
hartnn (hartnn):
r = -18/6 = 54/-18 = ... ?
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