What is an explicit formula for the geometric sequence -64,16,-4,1,... where the first term should be f(1).
1 answer:
Answer:
it seems like the first term is -64, so lets write the formula accordingly:
a_n = a1(r)^(n-1)
where 'n' is the number of terms
a1 is the first term of the sequence
'r' is the ratio
the ratio is because -64 * = 16 and so on...
the explicit formula is :
=
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