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Topic: Numerical expression
Replies: 6   Last Post: Nov 28, 2012 3:16 AM

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Dave Snead

Posts: 52
Registered: 12/13/04
Re: Numerical expression
Posted: Nov 27, 2012 3:36 AM
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Adding the necessary parentheses:
((9 (3)^(1/2) + 4 (23)^(1/2))^(1/3) + (9 (3)^(1/2) + 4 (23)^(1/2))^(1/
3))/(3)^(1/2)
this comes out to
(2*(9*Sqrt[3] + 4*Sqrt[23])^(1/3))/Sqrt[3]

(2*(9*Sqrt[3] + 4*Sqrt[23])^(1/3))/Sqrt[3]//N
gives
3.76887
So it's not 1.

Cheers,
Dave Snead

-----Original Message-----
From: Massimo
Sent: Sunday, November 25, 2012 8:26 PM
Subject: Numerical expression

How could I handle in Mathematica this expression?

( ( 9(3)^1/2+4(23)^1/2)^1/3 + (9(3)^1/2+4(23)^1/2)^1/3 ) / (3)^1/2)

With a lot of trouble I have found out that is equal 1,
but how to get it with Mathematica?

Thanks very much.



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