Sequences/Series Test Practice Date Period
[Pages:12]Algebra 2
ID: 1
Name___________________________________
Sequences/Series Test Practice
Date________________ Period____
If the sequence is arithmetic or geometric, find the next 3 terms.
55 5 5 1) -5, - , - , - , - , ...
4 16 64 256
2) 1, 3, 6, 10, 15, ...
3) -11, 89, 189, 289, 389, ...
4) -38, -36, -34, -32, -30, ...
Given the first term and the common difference of an arithmetic sequence find the term named in the problem.
5) a = -9, d = 2 1 Find a 20
6) a = -14, d = -10 1 Find a 38
Find the missing term or terms in each arithmetic sequence.
7) ..., -20, ___, ___, ___, 0, ...
8) ..., 26, ___, ___, ___, ___, 41, ...
Given the first term and the common ratio of a geometric sequence find the term named in the problem.
9) a = -4, r = -2 1 Find a 10
10) a = 2, r = -2 1 Find a 11
Find the missing term or terms in each geometric sequence.
11) ..., -1, ___, ___, ___, -256, ...
12) ..., -2, ___, ___, ___, ___, -2048, ...
Evaluate each arithmetic series described.
8
13) (2k + 7)
k = 2
10
14) (5 - 3i)
i = 3
15) a = 16, d = 3, n = 5 1
17) 6 + 8 + 10 + 12..., n = 7
16) a = 7, d = 7, n = 45 1
18) (-2) + 2 + 6 + 10..., n = 19
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-1-
Worksheet by Kuta Software LLC
Determine the number of terms n in each arithmetic series.
19) a = 26, a = 166, S = 1440
1
n
n
20) a = 10, a = 451, S = 11525
1
n
n
Evaluate each geometric series described. 21) -3 + 15 - 75 + 375..., n = 6
22) 1 + 5 + 25 + 125..., n = 8
( ) 9
1 i-1
23) -2
i = 1
5
7
24) 2 (-6)i - 1
i = 1
Evaluate each infinite geometric series described.
( )
4 m-1
25) 108 -
m = 1
3
( )
1 n-1
26) -2
n = 1
2
33 3 27) 6 - + - ...
2 8 32
22 2 28) 2 - + - ...
3 9 27
Determine the number of terms n in each geometric series.
29) a = -2, r = -6, S = 13330
1
n
30) a = -3, r = -6, S = 555
1
n
Given the recursive formula for an arithmetic sequence find the first five terms.
31) a = a + n n+1 n a =7 1
32) a = a - a n+1 n n+1 a =2 1 a =3 2
33) a = a + n n+1 n a =3 1
34) a = a + n n+1 n a = -10 1
35) a = a + n n+1 n a = -9 1
36) a = a + 9 n+1 n a = -13 1
37) a = a 4 n+1 n a = -2 1
38) a = a -5 n+1 n a =3 1
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-2-
Worksheet by Kuta Software LLC
Answers to Sequences/Series Test Practice (ID: 1)
5
5
5
1) - , - , -
1024 4096 16384
2) 21, 28, 36
3) 489, 589, 689
4) -28, -26, -24
5) a = 29 20
6) a = -384 38
8) 29, 32, 35, 38
9) a = 2048 10
10) a = 2048 11
11) -4, -16, -64 or 4, -16, 64 12) -8, -32, -128, -512
7) -15, -10, -5 13) 119
14) -116
15) 110
16) 7245
17) 84
18) 646 22) 97656
19) 15 976562
23) - 390625
20) 50 24) 79982
21) 7812 25) No sum
26) -4
24 27)
5
3 28)
2
29) 6
30) 4
31) 7, 12, 17, 22, 27 32) 2, 3, -1, 4, -5
33) 3, 5, 8, 12
34) -10, -8, -5, -1
35) -9, -7, -4, 0
36) -13, -4, 5, 14
37) -2, -8, -32, -128, -512 38) 3, -15, 75, -375, 1875
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-3-
Worksheet by Kuta Software LLC
Algebra 2
ID: 2
Name___________________________________
Sequences/Series Test Practice
Date________________ Period____
If the sequence is arithmetic or geometric, find the next 3 terms.
1) 4, -8, 16, -32, 64, ...
5 7 9 11 2) 3, , , , , ...
4 9 16 25
3) 3, 15, 75, 375, 1875, ...
4) 1, 4, 9, 16, 25, ...
Given the first term and the common difference of an arithmetic sequence find the term named in the problem.
5) a = 6, d = 2 1 Find a 22
6) a = -39, d = -3 1 Find a 39
Find the missing term or terms in each arithmetic sequence.
7) ..., 32, ___, ___, ___, 8, ...
8) ..., 1, ___, ___, ___, ___, 501, ...
Given the first term and the common ratio of a geometric sequence find the term named in the problem.
9) a = -1, r = -2 1 Find a 11
10) a = -4, r = 3 1 Find a 11
Find the missing term or terms in each geometric sequence.
11) ..., 2, ___, ___, ___, ___, 15552, ...
12) ..., 3, ___, ___, ___, ___, 9375, ...
Evaluate each arithmetic series described.
10
13) (7k - 12)
k = 3
10
14) (8m - 5)
m = 5
15) a = -10, d = -10, n = 13 1
17) (-4) + (-2) + 0 + 2..., n = 8
16) a = 6, d = -2, n = 9 1
18) 17 + 20 + 23 + 26..., n = 7
Determine the number of terms n in each arithmetic series.
19) a = 5, a = 65, S = 455
1
n
n
20) a = 15, a = 35, S = 150
1
n
n
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-1-
Worksheet by Kuta Software LLC
Evaluate each geometric series described. 21) -4 - 24 - 144 - 864..., n = 6
11 1 1 22) - + - + ..., n = 7
4 8 16 32
9
23) 4n - 1
n = 1
8
24)
5m - 1
m = 1
Evaluate each infinite geometric series described.
( ) 27 4 m - 1
25)
m = 1 32 3
( ) 27 2 n - 1
26) - n=1 2 3
33 3 27) 3 + + + ...
4 16 64
28) -1.3 - 1.04 - 0.832 - 0.6656...
Determine the number of terms n in each geometric series.
29) a = -4, r = -6, S = -124
1
n
30) a = -1, r = 2, S = -7
1
n
Given the recursive formula for an arithmetic sequence find the first five terms.
31) a = a - 7 n+1 n a = -40 1
32) a = a - 2 n+1 n a = 30 1
2 + a
33) a =
n
n + 1
2
a = -22 1
34) a = a + n n+1 n a = -6 1
35) a = a 2 n+1 n a =1 1
36) a = na
n + 1
n
a = -1 1
37) a = a -4 n+1 n a =1 1
38) a = a -5 n+1 n a = -3 1
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-2-
Worksheet by Kuta Software LLC
Answers to Sequences/Series Test Practice (ID: 2)
1) -128, 256, -512
13 15 17 2) , ,
36 49 64
3) 9375, 46875, 234375
4) 36, 49, 64 8) 101, 201, 301, 401 12) 15, 75, 375, 1875
5) a = 48 22
9) a = -1024 11
13) 268
6) a = -153 39
10) a = -236196 11
14) 330
7) 26, 20, 14 11) 12, 72, 432, 2592 15) -910
16) -18
17) 24
18) 182
19) 13
20) 6
21) -37324
43 22) -
256
23) 87381
24) 97656
25) No sum
81 26) -
2
27) 4
28) -6.5
29) 3
30) 3
31) -40, -47, -54, -61, -68 32) 30, 28, 26, 24, 22 33) -22, -10, -4, -1
34) -6, -4, -1, 3
35) 1, 2, 4, 8
36) -1, -2, -6, -24
37) 1, -4, 16, -64, 256
38) -3, 15, -75, 375, -1875
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-3-
Worksheet by Kuta Software LLC
Algebra 2
ID: 3
Name___________________________________
Sequences/Series Test Practice
Date________________ Period____
If the sequence is arithmetic or geometric, find the next 3 terms.
1) 4, 16, 36, 64, 100, ...
2) 6.2, 9.1, 12, 14.9, 17.8, ...
1 7 8 25 17 3) - , , , , , ...
363 6 3
33 3 3 4) 3, - , , - , , ...
5 25 125 625
Given the first term and the common difference of an arithmetic sequence find the term named in the problem.
5) a = 7, d = -3 1 Find a 20
6) a = -38, d = -4 1 Find a 20
Find the missing term or terms in each arithmetic sequence.
7) ..., 33, ___, ___, ___, ___, 83, ...
8) ..., -39, ___, ___, ___, ___, -79, ...
Given the first term and the common ratio of a geometric sequence find the term named in the problem.
9) a = -2, r = -3 1 Find a 12
10) a = 2, r = -2 1 Find a 12
Find the missing term or terms in each geometric sequence.
11) ..., -3, ___, ___, ___, -243, ...
12) ..., 3, ___, ___, ___, ___, 3072, ...
Evaluate each arithmetic series described.
7
13) (16 - 9m)
m = 2
11
14) (1 - 8m)
m = 3
15) a = 30, d = 6, n = 15 1
16) a = 33, d = 9, n = 11 1
17) 18 + 28 + 38 + 48..., n = 20
18) 25 + 34 + 43 + 52..., n = 10
Determine the number of terms n in each arithmetic series.
19) a = 32, a = 344, S = 7520
1
n
n
20) a = 10, a = 58, S = 238
1
n
n
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-1-
Worksheet by Kuta Software LLC
Evaluate each geometric series described. 22 2
21) 2 - + - ..., n = 7 3 9 27
22) -2 - 10 - 50 - 250..., n = 7
7
23)
3m - 1
m = 1
10
24) 3k - 1
k = 1
Evaluate each infinite geometric series described.
25) -9.1 0.2m - 1
m = 1
26) 7.7 (-0.6)i - 1
i = 1
62 2 2 27) - + - + ...
5 5 15 45
28) 5.9 + 9.44 + 15.104 + 24.1664...
Determine the number of terms n in each geometric series.
29) a = 4, r = -4, S = 52
1
n
30) a = -1, r = -5, S = 104
1
n
Given the recursive formula for an arithmetic sequence find the first five terms.
31) a = a + 100 n+1 n a =6 1
32) a = a + 3 n+1 n a = -21 1
33) a = a + 7 n+1 n a = 11 1
34) a = a + 4 n+1 n a = 35 1
35) a = na
n + 1
n
a =1 1
3 36) a = a +
2 n + 1 n
12
a =-
1
7
37) a = a -4 n+1 n a =1 1
38) a = a -5 n+1 n a =2 1
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Worksheet by Kuta Software LLC
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