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#1 2013-06-03 06:54:49

smasher99
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Expansion

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

#2 2013-06-03 07:15:49

anonimnystefy
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Re: Expansion

Around which point? It cannot be expanded around 0.


The limit operator is just an excuse for doing something you know you can't.
“It's the subject that nobody knows anything about that we can all talk about!” ― Richard Feynman
“Taking a new step, uttering a new word, is what people fear most.” ― Fyodor Dostoyevsky, Crime and Punishment

#3 2013-06-03 07:27:50

smasher99
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Re: Expansion

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

#4 2013-06-03 07:38:03

anonimnystefy
Real Member

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Re: Expansion

Oh, you mean

.

Well:

Last edited by anonimnystefy (2013-06-03 07:42:04)


The limit operator is just an excuse for doing something you know you can't.
“It's the subject that nobody knows anything about that we can all talk about!” ― Richard Feynman
“Taking a new step, uttering a new word, is what people fear most.” ― Fyodor Dostoyevsky, Crime and Punishment

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