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ksaimouli

(x^2-2)(x^-1+1) use the derivative

  • one year ago
  • one year ago

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  1. mathslover
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    You mean to find : \(\large\frac{d}{dx}\frac{(x^2-2)}{(x^{-1}+1)}\) ?

    • one year ago
  2. ksaimouli
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    |dw:1348676392682:dw|

    • one year ago
  3. ksaimouli
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    i am stuck here

    • one year ago
  4. mathslover
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    is it \(-2x^3\) ?

    • one year ago
  5. Yahoo!
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    Lol...Didnt get ur Question Can u Write in Latex

    • one year ago
  6. ksaimouli
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    no the question is write the expression as a sum of power of x

    • one year ago
  7. mathslover
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    What does that sum power mean actually?

    • one year ago
  8. ksaimouli
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    i dont know but the answer is x+x^2-2x^-1-2

    • one year ago
  9. mathslover
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    OK so it is easy : \[\large{(x^2-2)(x^{-1}+1)}\] \[\large{x+x^2-2x^{-1}-2 = x-x^2-\frac{2}{x}-2}\]

    • one year ago
  10. mathslover
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    oops sorry there is x + x^2 - 2/x - 2

    • one year ago
  11. ksaimouli
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    so just expand it?

    • one year ago
  12. mathslover
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    yep

    • one year ago
  13. ksaimouli
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    thx

    • one year ago
  14. mathslover
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    you're always welcome @ksaimouli

    • one year ago
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