Which of the following is NOT a geometric sequence? a. 20,−40,80,−160,320,... b. 5,2.5,1.25,0.625,0.3125,... c. 1,2,4,8,16,... d. 100,50,10,5,1,...

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Peter Csala · Answer 1 · 2024-04-12T13:13:17+0000

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The sequence 100, 50, 10, 5, 1, ... is NOT a geometric sequence because there is no single constant ratio that multiplies each term to get the next one.

Which of the following is NOT a geometric sequence? a. 20,−40,80,−160,320,... b. 5,2.5,1.25,0.625,0.3125,... c. 1,2,4,8,16,... d. 100,50,10,5,1,...

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