Answer: -1.5
Step-by-step explanation:
We have sequence equation
.
In this case n is a natural number (1, 2, 3, ...).
So start inserting and computing value of
given that you know the value of n and a.
(first term)

Hope this helps.
Step-by-step explanation:
x=20
x aris is stright .right?
Answer:


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