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GRE Prep Club Team Member
Joined: 20 Feb 2017
Posts: 2508
Given Kudos: 1053
GPA: 3.39
For any numbers a and b, a#b=a + b - ab. If a#b=0, which of the follow
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20 Sep 2021, 04:38
20 Sep 2021, 04:38
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Question Stats:
61% (01:45) correct
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For any numbers a and b, a#b=a + b - ab. If a#b=0, which of the following CANNOT be a value of b?
A. 2
B. 1
C. 0
D. -1
E. -3/2
A. 2
B. 1
C. 0
D. -1
E. -3/2
For any numbers a and b, a#b=a + b - ab. If a#b=0, which of the follow
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20 Sep 2021, 14:13
20 Sep 2021, 14:13
GeminiHeat wrote:
For any numbers a and b, a#b=a + b - ab. If a#b=0, which of the following CANNOT be a value of b?
Given \(a#b = a + b - ab = 0\)
\(= a + b = ab\)
dividing by \(ab\) on both sides
\(= \frac{1}{b} + \frac{1}{a} = 1\)
So \(b\) cannot be equal to zero.
Answer is C) 0
Re: For any numbers a and b, a#b=a + b - ab. If a#b=0, which of the follow
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07 Mar 2023, 13:52
07 Mar 2023, 13:52
2
a#b = a+b-ab, so a+b = ab
If b = 1, then a+1 = a, which is not possible.
Answer B.
If b = 1, then a+1 = a, which is not possible.
Answer B.
