Woo-Jin and Kiran were asked to find an explicit formula for the sequence 64\,,\,16\,,\,4\,,\,1,...64,16,4,1,...64, comma, 16, c
omma, 4, comma, 1, comma, point, point, point. Woo-Jin said the formula is f(n)
2 answers:
Answer:

Step-by-step explanation:
The given sequence is
64, 16, 4, 1



It is a geometric series because it has a common ratio
.
First term is 64.
The explicit formula of a geometric series is

where, a is first term and r is common ratio.
Substitute a=64 and r=1/4 in the above function.

Therefore, the required explicit formula is
.
Answer:
Neither Woo-Jin nor Kiran
Step-by-step explanation:
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