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23 May 2019, 03:39
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E
Be sure to select an answer first to save it in the Error Log before revealing the correct answer (OA)!
Difficulty:
35%
(medium)
Question Stats:
68% (02:02) correct
32%
(01:50)
wrong
based on 99
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The integer a is greater than 1 and is not equal to the square of an integer. Which of the following answer choices could potentially be equal to the square of an integer?
I. \(a^2- 1\)
II. \(a^2+ 1\)
III. \(a^2- a\)
A. I only
B. II only
C. III only
D. I and III only
E. None
I. \(a^2- 1\)
II. \(a^2+ 1\)
III. \(a^2- a\)
A. I only
B. II only
C. III only
D. I and III only
E. None
23 May 2019, 10:53
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I & II. Consecutive numbers cannot be squares
III. a(a-1) ---> Product of two consecutive numbers cannot be squares
IMO. E
Posted from my mobile device
III. a(a-1) ---> Product of two consecutive numbers cannot be squares
IMO. E
Posted from my mobile device
