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Which of the following must be equal to zero, where x is a non-zero in
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10 Apr 2023, 23:50
10 Apr 2023, 23:50
Expert Reply
00:00
Question Stats:
80% (00:19) correct
20% (00:30) wrong based on 5 sessions
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Which of the following must be equal to zero, where x is a non-zero integer?
Indicate all that apply
A. \(-\frac{1}{x}
\)
B. \(x+(-x)\)
C. \(\frac{2}{2x+1}-\frac{1}{x+0.5}\)
D. \(\frac{0}{x}\)
_________________
Indicate all that apply
A. \(-\frac{1}{x}
\)
B. \(x+(-x)\)
C. \(\frac{2}{2x+1}-\frac{1}{x+0.5}\)
D. \(\frac{0}{x}\)
_________________
Re: Which of the following must be equal to zero, where x is a non-zero in
[#permalink]
27 May 2023, 01:07
27 May 2023, 01:07
Expert Reply
Starting with D
0 divided by any number is still 0. So D is correct
C is 2/2(x+0.5)=1/(x+0.5). Therefore we subtract to equal quantities of opposite signs. C must be also 0
B essentially is x-x Therefore B must be = to 0 as well
A -1 divided by any number different from zero will be never zero itself
B, C, and D are the correct options
_________________
0 divided by any number is still 0. So D is correct
C is 2/2(x+0.5)=1/(x+0.5). Therefore we subtract to equal quantities of opposite signs. C must be also 0
B essentially is x-x Therefore B must be = to 0 as well
A -1 divided by any number different from zero will be never zero itself
B, C, and D are the correct options
_________________
gmatclubot
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