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The nthnth term of a sequence S is given by the following relationship
[#permalink]
07 Jul 2022, 04:19
07 Jul 2022, 04:19
4
Bookmarks
Show timer
00:00
A
B
C
D
E
Difficulty:
95%
(hard)
Question Stats:
9% (01:46) correct
91%
(01:00)
wrong
based on 45
sessions
The \(n^{th}\) term of a sequence \(S\) is given by the following relationship; \(a_n\) = [ (-1)\(^n\) ]. What is the sum of the first hundred terms?
(A) - 50
(B) - 10
(C) 0
(D) 10
(E) 50
(A) - 50
(B) - 10
(C) 0
(D) 10
(E) 50
Re: The nthnth term of a sequence S is given by the following relationship
[#permalink]
09 Jul 2022, 08:20
09 Jul 2022, 08:20
1
Kudos
My answer is C.
Can anyone explain why the answer is E?
Can anyone explain why the answer is E?
Intern
Joined: 13 Jun 2021
Posts: 22
Given Kudos: 11
Location: India
Schools: NUS '26
GMAT 1: 530 Q47 V17
GPA: 3.26
Re: The nthnth term of a sequence S is given by the following relationship
[#permalink]
10 Jul 2022, 19:07
10 Jul 2022, 19:07
each of the odd terms will cancel out even terms.
Answer should be 0
i.e. C
Answer should be 0
i.e. C
