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What is m? m = sqrt4 + cube root 4 + fourth root of 4

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What is m? m = sqrt4 + cube root 4 + fourth root of 4 [#permalink] New post 23 Jul 2006, 18:16
What is m?

m = sqrt4 + cube root 4 + fourth root of 4
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 [#permalink] New post 23 Jul 2006, 18:31
m = (4)^1/2 + (4)^1/3 + (4)^1/4

4^1/2 = 2
4^1/4 = 2^1/2 = 1.414
4^1/3 = 2^1/3 = ~1.6

Total = 5
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 [#permalink] New post 15 Sep 2006, 19:50
Why is 4^1/3 = 2^1/3 ???
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 [#permalink] New post 16 Sep 2006, 03:54
Is the general rule not a^b = sq root a^2b

So shouldn't 4^(1/3) = 2^(2(1/3)) or 2^(1/3) * 2^(1/3) ????
  [#permalink] 16 Sep 2006, 03:54
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What is m? m = sqrt4 + cube root 4 + fourth root of 4

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