Regents Exam Questions A2.N.10: Sigma Notation 1
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A2.N.10: Sigma Notation 1: Know and apply sigma notation
5
1 What is the value of
 (m
2
2
 1)
5 The value of the expression 2
m2
1)
2)
3)
4)
n0
1)
2)
3)
4)
58
54
53
50
12
22
24
26
5
3
2 What is the value of
 (2  k) ?
2
6 Evaluate:
 (n
2
 n)
n1
k1
1)
2)
3)
4)
1
2
3
0
3
7 Evaluate:
 (n
4
 n)
2
 5)
n1
5
3 The value of the expression
 (r
2
 r) is
r3
1)
2)
3)
4)
38
12
26
62
4
8 Evaluate: 3
5
 (2m  1)
m1
9 Evaluate: 10 
?
 (n
n1
m1
1)
2)
3)
4)
 (x
x2
3
4 What is the value of
 (n
15
55
57
245
1
3
 1)
2
 2 n ) is
ID: A
A2.N.10: Sigma Notation 1: Know and apply sigma notation
Answer Section
1 ANS: 4
m
2
3
4
5
3
8
15
24
50
Σ
REF: 060201b
2 ANS: 2
k
1
1
2
0
3
1
Σ
2
REF: 060903b
3 ANS: 1

n
3
4
5
r 2  r 3 2  3  6 4 2  4  125 2  5  20 38
REF: 061118a2
4 ANS: 2
m
1
1
2
5
3
49
Σ
55
REF: 060117b
5 ANS: 3

n
0
1
2
2
n
2
0
2
2
2
2
n 2
0  2  1 1  2  3 2  2  8 12
2  12  24
REF: fall0911a2
1
ID: A
6 ANS:
n
1
2
3
4
5
2
6
12
20
30
70
Σ
REF: 080521b
7 ANS:
104.
REF: 011230a2
8 ANS:
x
2
3
4
-1
4
11
14
Σ
3  14  42
REF: 080823b
9 ANS:
230. 10  (1 3  1)  (2 3  1)  (3 3  1)  (4 3  1)  (5 3  1)  10  0  7  26  63  124  230
REF: 011131a2
2