Sequences as Functions and Recursion
Algebra 1 · Flashcards
ALGEBRA 1 · FLASHCARDS
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QUESTION
What is
a
4
a_4
a
4
for the explicit sequence
a
n
=
2
n
a_n=2^n
a
n
=
2
n
with domain
n
≥
0
n\ge 0
n
≥
0
?
QUESTION
What is the range of a sequence?
QUESTION
Identify whether
a
n
=
2
n
−
1
a_n=2n-1
a
n
=
2
n
−
1
(for
n
≥
1
n\ge 1
n
≥
1
) is explicit or recursive.
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ANSWER
Explicit. The formula directly gives
a
n
a_n
a
n
in terms of
n
n
n
.
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