GRE Prep Club Daily Prep
Thank you for using the timer - this advanced tool can estimate your performance and suggest more practice questions. We have subscribed you to Daily Prep Questions via email.
Customized
for You
Track
Your Progress
Practice
Pays
Not interested in getting valuable practice questions and articles delivered to your email? No problem, unsubscribe here.
ab is different from zero
[#permalink]
11 Sep 2019, 23:59
11 Sep 2019, 23:59
Expert Reply
00:00
Question Stats:
88% (00:33) correct
11% (00:47) wrong based on 67 sessions
Hide Show timer Statistics
\(ab \neq 0\)
A)The quantity in Column A is greater.
B)The quantity in Column B is greater.
C)The two quantities are equal.
D)The relationship cannot be determined from the information given.
Kudos for the right answer and explanation
Quantity A |
Quantity B |
\((a^{-2}b^{-2})^{-1}\) |
\((a^{-1}b^{-1})^{-2}\) |
A)The quantity in Column A is greater.
B)The quantity in Column B is greater.
C)The two quantities are equal.
D)The relationship cannot be determined from the information given.
Kudos for the right answer and explanation
Retired Moderator
Joined: 10 Apr 2015
Posts: 6218
Given Kudos: 136
ab is different from zero
[#permalink]
12 Sep 2019, 10:42
12 Sep 2019, 10:42
1
Carcass wrote:
\(ab \neq 0\)
Quantity A |
Quantity B |
\((a^{-2}b^{-2})^{-1}\) |
\((a^{-1}b^{-1})^{-2}\) |
KEY CONCEPT (Power of a Product law): \((x^ay^b)^n=x^{an}y^{bn}\)
Applying the above law, we get:
Quantity A: \((a^{-2}b^{-2})^{-1}=a^2b^2\)
Quantity B: \((a^{-1}b^{-1})^{-2}=a^2b^2\)
Answer: C
Cheers,
Brent
RELATED VIDEO
Re: ab is different from zero
[#permalink]
16 Sep 2019, 13:54
16 Sep 2019, 13:54
We get same values by solving ColA & Col B ,
Ans is C
Ans is C
