Below are five number sequences. Which ones are geometric sequences? Check all that apply. A. 1/4, 1/2, 1, 2, 4, ... B. 2, 3, 5, 9, 17, ... C. 1/3, 2/9, 3/27, 4/81, 5/343, ... D. 3, - 15, - 33, - 51, - 69, ... E. 2, - 14, 98, - 686, 4802, ...
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