Hi

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- June 20th 2009, 12:31 AM #1

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- May 2009
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## 8.24 is not like 1 + 3x

Hi guys,

now this is an easy one.

Given the expansion of

find

so the problem is to get 8.24 into the form 1 + 3x i.e. x = 2.413 but it can't be that! Since the index of the expansion is 1/3 the binomial is only valid if mod x < 1/3.

Clearly I am missing something obvious!

- June 20th 2009, 12:42 AM #2

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- June 20th 2009, 12:46 AM #3

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- June 20th 2009, 12:46 AM #4

- June 20th 2009, 12:55 AM #5