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Intern
Joined: 06 May 2012
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13 May 2012, 21:43

If M= (4)^1/2 + (4)^1/3 + (4)^1/4, then the value of M is:

a. less than 3
b. equal to 3
c. between 3 and 4
d. equal to 4
e. greater than 4

Thks! XD

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Status: Top MBA Admissions Consultant
Joined: 24 Jul 2011
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13 May 2012, 23:20
M = (4)^1/2 + (4)^1/3 + (4)^1/4
=> M = 2 + between 1 and 2 + between 1 and 2
=> M = greater than 4

Option E
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21 May 2012, 09:39
You have to remember that square roots, cube roots, quad roots, etc. of a number greater than 1 will always yield a number greater than 1.

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Re: Exponents   [#permalink] 21 May 2012, 09:39
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