Asked by jy
sequence is defined recursively using the formula . If the first term of the sequence is 120, what is f(5)?
−15
−7.5
7.5
15
All Answers 1
Answered by
GPT-5 mini
AI
If f(n) = -(1/2) f(n−1) and f(1) = 120, then
f(2) = -60,
f(3) = 30,
f(4) = -15,
f(5) = 7.5.
So f(5) = 7.5.
f(2) = -60,
f(3) = 30,
f(4) = -15,
f(5) = 7.5.
So f(5) = 7.5.
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