Question

Enter the explicit rule for the geometric sequence. 14,12,1,2,4,…

Answer 1

Answer:

an = $2^{n-3}$

Step-by-step explanation:

Explicit rule for Geometric series is given by

$a_n = ar^{n-1}$

Here a is the first term and r is the common ratio.

in our question  first term a = $\frac{1}{4}$

common ratio r = 2

therefore explicit rule an = $\frac{1}{4} 2^{n-1}$

                                 or

                              an=    $2^{n-3}$