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Which expression is equivalent to
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03 Apr 2017, 03:01
03 Apr 2017, 03:01
Expert Reply
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Question Stats:
59% (01:11) correct
40% (01:12) wrong based on 27 sessions
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Which expression is equivalent to \(\frac{1}{y - (1 \div y)}-y\)?
A. \(\frac{y^3 + y -1}{y^2 -1}\)
B. \(\frac{2y - y^3}{y^2 -1}\)
C. \(\frac{-y^3}{y^2 -1}\)
D. \(y^3 + y -1\)
E. \(- y -1\)
A. \(\frac{y^3 + y -1}{y^2 -1}\)
B. \(\frac{2y - y^3}{y^2 -1}\)
C. \(\frac{-y^3}{y^2 -1}\)
D. \(y^3 + y -1\)
E. \(- y -1\)
Drill 2
Question: 2
Page: 318
Question: 2
Page: 318
Re: Which expression is equivalent to
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03 Apr 2017, 05:24
03 Apr 2017, 05:24
Expert Reply
Explanation
This is a good problem for Plugging In. If y = 2, then the expression becomes equal to − \(\frac{4}{3}\). Choice B is the only choice that gives you − when you replace y with 2.
Hence option B is correct.
This is a good problem for Plugging In. If y = 2, then the expression becomes equal to − \(\frac{4}{3}\). Choice B is the only choice that gives you − when you replace y with 2.
Hence option B is correct.
gmatclubot
Re: Which expression is equivalent to [#permalink]
03 Apr 2017, 05:24
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