The seventh term of the following sequence is 192
Geometric sequence
Given the geometric sequence as shown below
1.5, 3, 6, ...
The nth term of the sequence is expressed as:
Tn = ar^n-1
r is the common ratio =6/3 = 3/1.5 = 2
n is the number of terms = 7
a is the first term = 1.5
Determine the 7th term
T7 = 1.5(2)^7-1
T7 = 1.5(2)^6
T7 = 192
Hence the seventh term of the following sequence is 192
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