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schmidtdancer

  • 3 years ago

Find the limit. lim x-->3. sqrt(x+1)/x-4

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  1. schmidtdancer
    • 3 years ago
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    |dw:1342982402887:dw|

  2. schmidtdancer
    • 3 years ago
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    I got -2.. is that right @apoorvk

  3. quarkine
    • 3 years ago
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    it is +2 or -2 depending on the what you take as sqrt ( 4)= [ 2 or -2]

  4. schmidtdancer
    • 3 years ago
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    I got -2 as my answer..

  5. schmidtdancer
    • 3 years ago
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    well the square root of 4 is 2.... so

  6. schmidtdancer
    • 3 years ago
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    But we have to divide by -1. SO i got -2 @quarkine

  7. mukushla
    • 3 years ago
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    answer is -2 u r Quite right

  8. quarkine
    • 3 years ago
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    but cant sqrt 4 be taken as -2 as well??

  9. schmidtdancer
    • 3 years ago
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    No

  10. quarkine
    • 3 years ago
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    why?

  11. quarkine
    • 3 years ago
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    @schmidtdancer ??

  12. mukushla
    • 3 years ago
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    we consider \( y=\sqrt{x+1} \) as a function so for a given x u have a unique y

  13. mukushla
    • 3 years ago
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    |dw:1342983149196:dw|

  14. mukushla
    • 3 years ago
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    am i right quarkine?

  15. apoorvk
    • 3 years ago
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    yes @mukushla you're right!

  16. quarkine
    • 3 years ago
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    hmmm yeah... thought of that but here it wasnt said anything about a single valued function..

  17. apoorvk
    • 3 years ago
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    and @schmidtdancer you too with -2!

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