# Show that the given sequence is geometric by finding the common ratio r. 9, − 9 4 , 9 16 , . . . , 9 − 1 4 n−1 , . . .?

• Show that the given sequence is geometric by finding the common ratio r. 9, − 9 4 , 9 16 , . . . , 9 − 1 4 n−1 , . . .?

Show that the given sequence is geometric by finding the common ratio r. 9, − 9 4 , 9 16 , ... by finding the common ratio r. 9, − 9 4 , 9 16 ...
Positive: 45 %
. n 1. n 4 3n 4 2 2 2, 4, 8, 16 ... with common ratio is given by S n n i 1 a 1 ri 1 a 1 1 r ... S 1..,.,.,,,. Section 9.3 Geometric Sequences and Series ...
Positive: 42 %

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where the initial term a and the common ratio r are real numbers. The geometric ... k=1 k2 =12 +22 +33 +42 +52 = 1+4+9+16 ... r−1 if r =1 (n +1)a if r ...
Positive: 45 %
... of an arithmetic sequence is: an = a1 + (n – 1)d ... called a geometric sequence. 2, 4, 8, 16, 32, …. 1, 3, 9, ... If r is the common ratio in a ...
Positive: 40 %
... (n – 1)4. If we let d = 4 this ... general term an+1 = an r is called an geometric sequence. an = nth term and r = common ratio Examples ... 27,9,3,1 ...