if {a_n } is geometric sequence and we know , p=((n+m)/2) ⇒ S_p = f(a_n ,a_m ,n,m)=? ■Attention: The purpose of obtaining a relationship without the need for direct calculation is the common ratio of the sequence. For example, in a geometric sequence with a negative common ratio, if the sixth and tenth terms are equal to 5 and 12, the sum of the first 7 terms of this sequence?


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Question Number 199593 by jabarsing last updated on 05/Nov/23
$if {a_n } is geometric sequence and we know , p=((n+m)/2) ⇒ S_p = f(a_n ,a_m ,n,m)=? ■Attention: The purpose of obtaining a relationship without the need for direct calculation is the common ratio of the sequence. For example, in a geometric sequence with a negative common ratio, if the sixth and tenth terms are equal to 5 and 12, the sum of the first 7 terms of this sequence?$
$i f {a_{n}} i s g e o m e t r i c s e q u e n c e a n d$ $w e k n o w, p = \frac{n + m}{2} \Rightarrow$ $S_{p} = f (a_{n}, a_{m}, n, m) = ?$ $◼ A t t e n t i o n :$ The purpose of obtaining a relationship without the need for direct calculation is the common ratio of the sequence. For example, in a geometric sequence with a negative common ratio, if the sixth and tenth terms are equal to 5 and 12, the sum of the first 7 terms of this sequence?
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