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sqrt of 7 + 13
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02 Aug 2022, 11:09
02 Aug 2022, 11:09
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Question Stats:
72% (00:37) correct
27% (01:41) wrong based on 18 sessions
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Quantity A |
Quantity B |
\([ \sqrt{7} +13 ][\sqrt{7} - 13]\) |
\(- [13+ \sqrt{7}][13-\sqrt{7}]\) |
A. Quantity A is greater
B. Quantity B is greater
C. The two quantities are equal
D. The relationship cannot be determined from the information given
Part of the project: GRE QCQ & PS 3 Questions Every One DAILY Challenge - (2022)
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GRE Math Essentials (2022)
GRE Geometry Formulas
GRE - Math Book
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
GRE Math Essentials (2022)
GRE Geometry Formulas
GRE - Math Book
Re: sqrt of 7 + 13
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03 Aug 2022, 08:01
03 Aug 2022, 08:01
1
(a+b)(a-b)=a^2-b^2
[7√+13][7√−13]= 7-169=-162
−[13+7√][13−7√]=-(169-7)=-(162)=-162
C
[7√+13][7√−13]= 7-169=-162
−[13+7√][13−7√]=-(169-7)=-(162)=-162
C
gmatclubot
Re: sqrt of 7 + 13 [#permalink]
03 Aug 2022, 08:01
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