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**smasher99****Member**- Registered: 2013-06-02
- Posts: 2

How do I expand x-(1/x)^2?

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**anonimnystefy****Real Member**- From: Harlan's World
- Registered: 2011-05-23
- Posts: 16,016

Around which point? It cannot be expanded around 0.

Here lies the reader who will never open this book. He is forever dead.

Taking a new step, uttering a new word, is what people fear most. ― Fyodor Dostoyevsky, Crime and Punishment

The knowledge of some things as a function of age is a delta function.

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**smasher99****Member**- Registered: 2013-06-02
- Posts: 2

The answer is x^2-2+1/x^2 but I don't know how it was arrived at ...

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**anonimnystefy****Real Member**- From: Harlan's World
- Registered: 2011-05-23
- Posts: 16,016

Oh, you mean

.Well:

*Last edited by anonimnystefy (2013-06-02 09:42:04)*

Here lies the reader who will never open this book. He is forever dead.

Taking a new step, uttering a new word, is what people fear most. ― Fyodor Dostoyevsky, Crime and Punishment

The knowledge of some things as a function of age is a delta function.

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