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If q is an odd integer greater than 1, what is the value of ( 1)^q +
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17 Apr 2022, 23:37
17 Apr 2022, 23:37
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Question Stats:
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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.
A. – 2
B. – 1
C. 0
D. 2
E. It cannot be determined from the information given.
Part of the project: GRE Quantitative Reasoning Daily Challenge - (2022) EDITION
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GRE Math Essentials for a TOP Quant Score - Q170!!! (2021)
GRE Geometry Formulas for a Q170
GRE - Math Book
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
GRE Math Essentials for a TOP Quant Score - Q170!!! (2021)
GRE Geometry Formulas for a Q170
GRE - Math Book
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Re: If q is an odd integer greater than 1, what is the value of ( 1)^q +
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18 Apr 2022, 06:15
18 Apr 2022, 06:15
1
Carcass 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.
A. – 2
B. – 1
C. 0
D. 2
E. It cannot be determined from the information given.
Key property: Odd integer exponents preserve the sign of the base
For example, (negative number)^(odd integer) = some negative number
Similarly, (positive number)^(odd integer) = some positive number
Since q is an odd integer, we can be certain that (– 1)^q = -1, which means (– 1)^q + 1 = (-1) + 1 = 0
Answer: C
Re: If q is an odd integer greater than 1, what is the value of ( 1)^q +
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18 Apr 2022, 10:51
18 Apr 2022, 10:51
1
Since q is odd, (-1)^q will always be odd irrespective of value.
So if q = 3 --> (-1)^3 + 1 ----> -1 + 1 --> 0
Ans is option C
So if q = 3 --> (-1)^3 + 1 ----> -1 + 1 --> 0
Ans is option C
