Hello all, Need your help (Happy)

Solve in the equation :

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- Apr 11th 2009, 05:28 PMlinda2005Solve this equation (involves radicals)
Hello all, Need your help (Happy)

Solve in the equation : - Apr 11th 2009, 05:53 PMJhevon
- Apr 11th 2009, 06:01 PMlinda2005
Yes I do that , but it's so hard to resolve !

- Apr 11th 2009, 06:12 PMmr fantastic
- Apr 11th 2009, 06:12 PMProve It
It's actually

.

Clearly is a solution.

Try graphing the equation .

Clearly it has one root at about , but I don't believe there's a way to solve it exactly (I may be wrong).

You might want to use a Heuristic method like the Bisection Method or Newton's Method to increase the accuracy.

Edit: And as Mr F says, it doesn't lie in the domain anyway... this post is for future reference :P - Apr 11th 2009, 06:22 PMNonCommAlg
for we have: so for all

- Apr 11th 2009, 06:24 PMmr fantastic
- Apr 11th 2009, 06:37 PMNonCommAlg