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mf1021

  • 2 years ago

College Calculus question. refer to the image please!! Thank you!!

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  1. mf1021
    • 2 years ago
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  2. mf1021
    • 2 years ago
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    thank you in advance for any help!

  3. ksaimouli
    • 2 years ago
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    is this l hospitals rule

  4. mf1021
    • 2 years ago
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    I tried to do that. but the problem was the fraction as whole is squared so it seems difficult to do expand and derivative

  5. hartnn
    • 2 years ago
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    which part u have difficulty with ? first term 1-cos x/2x or 2nd term sin5x/4x ?

  6. mf1021
    • 2 years ago
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    The problem is that I can not treat them as different parts since they are squared as whole.

  7. mf1021
    • 2 years ago
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    without square, I could have just take Limit separately.

  8. hartnn
    • 2 years ago
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    u can bring the limit inside the square function!

  9. mf1021
    • 2 years ago
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    by L hopital rule

  10. mf1021
    • 2 years ago
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    what do you mean?!

  11. hartnn
    • 2 years ago
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    lim (f(x)^2) = [lim f(x)]^2

  12. mf1021
    • 2 years ago
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    Oh I did not know that

  13. hartnn
    • 2 years ago
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    now can u solve that ?

  14. mf1021
    • 2 years ago
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    then I can take limit separately and do L hopital rule

  15. hartnn
    • 2 years ago
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    yep, then square the answer

  16. mf1021
    • 2 years ago
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    Yep I got it. Thank you for your help

  17. hartnn
    • 2 years ago
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    welcome :)

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