(a) Expand as a power series (b) Use part (a) to ...

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  1. mason patel
    mason patel
    Question:
    (a) Expand as a power series
    =(x+x^2)(1-x)^(-3)=(x+x^2)[1+3x/1!+(3*4)x^2/2!+(3*4*5)x^3/3!+...........]
    [x+3x^2/1!+(3*4)x^3/2!+(3*4*5)x^4/3!+....]+
    +[x^2+3x^3/1!+(3*4)x^4/2!+(3*4*5)x^5/3!+...................................]
    is the power series expansion.
    as you say you can try the other part you may try.if still indifficulty please come back

    (b) Use part (a) to find the sum of the series:
    I can't seem to find a way to expand(a) so I can do (b). Anyone want to help?

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