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Math Problems
Precalculus
Identify a sequence as explicit or recursive
Which word best describes this formula for the sequence
a
n
a_n
a
n
?
\newline
\newline
a
n
=
7
a
n
−
3
+
4
a
n
−
4
a_n = 7a_{n - 3} + 4a_{n - 4}
a
n
=
7
a
n
−
3
+
4
a
n
−
4
\newline
\newline
Choices:
\newline
(A)explicit
\newline
(B)recursive
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Which word best describes this formula for the sequence
a
n
a_n
a
n
?
\newline
a
n
=
−
4
a
n
−
1
+
a
n
−
4
−
12
n
2
−
13
n
+
14
a_n = -4a_{n - 1} + a_{n - 4} - 12n^2 - 13n + 14
a
n
=
−
4
a
n
−
1
+
a
n
−
4
−
12
n
2
−
13
n
+
14
\newline
Choices:
\newline
(A)explicit
\newline
(B)recursive
\newline
Get tutor help
Which word best describes this formula for the sequence
a
n
a_n
a
n
?
\newline
a
n
=
−
3
a
n
−
2
−
5
a
n
−
3
a_n = -3a_{n - 2} - 5a_{n - 3}
a
n
=
−
3
a
n
−
2
−
5
a
n
−
3
\newline
Choices:
\newline
(A) explicit
\newline
(B) recursive
Get tutor help
What is the value of the expression below when
x
=
4
x=4
x
=
4
?
\newline
3
x
−
3
3 x-3
3
x
−
3
\newline
Answer:
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