Math Is Fun Forum
  Discussion about math, puzzles, games and fun.   Useful symbols: √ ∞ ≠ ≤ ≥ ≈ ⇒ ∈ Δ θ ∴ ∑ ∫ π -

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Topic review (newest first)

anonimnystefy
2013-06-03 07:38:03

Oh, you mean

.

Well:

smasher99
2013-06-03 07:27:50

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

anonimnystefy
2013-06-03 07:15:49

Around which point? It cannot be expanded around 0.

smasher99
2013-06-03 06:54:49

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

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