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# If q is an odd integer greater than 1, what is the value of (– 1)q + 1

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Math Expert
Joined: 02 Sep 2009
Posts: 52294
If q is an odd integer greater than 1, what is the value of (– 1)q + 1  [#permalink]

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24 Dec 2018, 22:28
00:00

Difficulty:

15% (low)

Question Stats:

88% (00:25) correct 13% (00:27) wrong based on 24 sessions

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If q is an odd integer greater than 1, what is the value of (– 1)^q + 1?

A. – 2
B. – 1
C. 0
D. 2
E. It cannot be determined from the information given.

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Math Expert
Joined: 02 Aug 2009
Posts: 7204
Re: If q is an odd integer greater than 1, what is the value of (– 1)q + 1  [#permalink]

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25 Dec 2018, 21:56
Bunuel wrote:
If q is an odd integer greater than 1, what is the value of (– 1)^q + 1?

A. – 2
B. – 1
C. 0
D. 2
E. It cannot be determined from the information given.

Property of (-1)
When -1 is raised to odd positive integer it remains -1.
If it is raised to even positive integer, it becomes 1..

So here $$(-1)^q+1=-1+1=0$$, as q is odd integer >1.

C
_________________

1) Absolute modulus : http://gmatclub.com/forum/absolute-modulus-a-better-understanding-210849.html#p1622372
2)Combination of similar and dissimilar things : http://gmatclub.com/forum/topic215915.html
3) effects of arithmetic operations : https://gmatclub.com/forum/effects-of-arithmetic-operations-on-fractions-269413.html

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Re: If q is an odd integer greater than 1, what is the value of (– 1)q + 1 &nbs [#permalink] 25 Dec 2018, 21:56
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