(adsbygoogle = window.adsbygoogle || []).push({}); 1. The problem statement, all variables and given/known data

Have to find the Taylor series for (1-x)^(-0.5)

Then use this to find the Taylor series for (1-x^2)^(-0.5)

2. Relevant equations

3. The attempt at a solution

Was able to do the expansion for the first one quite easily, but not sure how to do the second one. My initial thought was to multiply the first expansion with the expansion for (1+x)^(-0.5)

since (1-x^2) = (1-x)(1+x)

But this is a one mark question, so this seems like too much working out to be the right way...

Is there a trick to this question? :S

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# Homework Help: Taylor Series help?

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