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**jacks****Member**- Registered: 2012-11-21
- Posts: 126

Prove that

My Solution:

So

So

My Question is How Can I calculate for Upper Bond.

Can anyone Like to explain me.

Thanks

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**scientia****Member**- Registered: 2009-11-13
- Posts: 224

Try

No, it doesn't work.

*Last edited by scientia (2013-02-27 14:30:34)*

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**bobbym****Administrator**- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 105,738

Hi;

I would suggest that you use the Taylor series, that will produce a sharper upper bound of ≈ 0.92785

**In mathematics, you don't understand things. You just get used to them.****If it ain't broke, fix it until it is.****No great discovery was ever made without a bold guess. **

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