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(7+5)/2= 6

(3+1+4+8)/4= 4

(2+9+4)/3= 5

Step-by-step explanation:

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the terms of a geometric sequence can be found by beginning with the first term and multiplying by the common ratio repeatedly. a recursive formula for a geometric sequence with common ratio r is given by an=ran−1 a n = r a n − 1 for n≥2 n ≥ 2 .

step-by-step explanation:

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