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ksaimouli

  • 3 years ago

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

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

  2. ksaimouli
    • 3 years ago
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    |dw:1348676392682:dw|

  3. ksaimouli
    • 3 years ago
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    i am stuck here

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

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

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

  7. mathslover
    • 3 years ago
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    What does that sum power mean actually?

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

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

  10. mathslover
    • 3 years ago
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    oops sorry there is x + x^2 - 2/x - 2

  11. ksaimouli
    • 3 years ago
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    so just expand it?

  12. mathslover
    • 3 years ago
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    yep

  13. ksaimouli
    • 3 years ago
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    thx

  14. mathslover
    • 3 years ago
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    you're always welcome @ksaimouli

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