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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 68 sessions
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\(ab \neq 0\)
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
