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nincompoop Group Title

use the definition of derivative to find f'(x)

  • 10 months ago
  • 10 months ago

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  1. nincompoop Group Title
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    \[f(x)=\sqrt{(x-4)}\]

    • 10 months ago
  2. myininaya Group Title
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    Do you need help pluggin in or multiply by the the top's conjugate?

    • 10 months ago
  3. swissgirl Group Title
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    hmmm do you mean \[ \frac{f(a+h)-f(a)}{(a+h)-a}\]

    • 10 months ago
  4. nincompoop Group Title
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    that is the definition of derivative @swissgirl YES :D

    • 10 months ago
  5. nincompoop Group Title
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    so you're left with \[f'(x)=\frac{ \sqrt }{ h }\]

    • 10 months ago
  6. swissgirl Group Title
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    \[f'(x)=\frac{ \sqrt{(x+h)-4}-\sqrt{x-4}}{h}\]

    • 10 months ago
  7. nincompoop Group Title
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    \[f'(x)=\lim_{h \rightarrow 0}\frac{ \sqrt }{ ? }\]

    • 10 months ago
  8. nincompoop Group Title
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    WTFFFFFF

    • 10 months ago
  9. shamil98 Group Title
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    LOL

    • 10 months ago
  10. shamil98 Group Title
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    That latex fail

    • 10 months ago
  11. nincompoop Group Title
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    why is not going through?

    • 10 months ago
  12. shamil98 Group Title
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    oh gratz on 90 ss nin

    • 10 months ago
  13. swissgirl Group Title
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    Just btw my definition is not complete. This is the correct definition \[ \lim_{h \to 0}\frac{f(a+h)-f(a)}{(a+h)-a}\]

    • 10 months ago
  14. nincompoop Group Title
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    \[f'(x)=\lim_{h \rightarrow 0} \frac{ \sqrt{(x+h)-4} -(\sqrt{x-4})} { h }\]

    • 10 months ago
  15. nincompoop Group Title
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    finally!!!!!!!!

    • 10 months ago
  16. shamil98 Group Title
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    f(x) = (x-4)^1/2 \[f'(x)= (\frac{ x-4 }{ 2 })^{\frac{ -1 }{ 2 }}\]

    • 10 months ago
  17. nincompoop Group Title
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    I didn't want to pick on you, @swissgirl LAUGHING OUT LOUD but yes. without the limit would be the MVT or the mean value theorem

    • 10 months ago
  18. shamil98 Group Title
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    o.o

    • 10 months ago
  19. nincompoop Group Title
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    no @shamil98 you've changed the entire thing by changing h = 2

    • 10 months ago
  20. nincompoop Group Title
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    h -> 0

    • 10 months ago
  21. nincompoop Group Title
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    you must be using a Plutonian Rule

    • 10 months ago
  22. swissgirl Group Title
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    Ok so basically the next step would be to multiply by the conjugate. Gonna write it out and scan it in cuz it will take me forever to type it in latex

    • 10 months ago
  23. nincompoop Group Title
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    I tried, omg that thing takes forever using the equation tool bar

    • 10 months ago
  24. nincompoop Group Title
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    you know at a glance, I thought it is not differentiable because it involves imaginary number and when that is the case, there's no limit with real number, hence no derivatives.

    • 10 months ago
  25. swissgirl Group Title
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    no there is a derivative just rewriting it.

    • 10 months ago
  26. swissgirl Group Title
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    • 10 months ago
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  27. nincompoop Group Title
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    i know that >.<

    • 10 months ago
  28. nincompoop Group Title
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    was showing @shamil98

    • 10 months ago
  29. nincompoop Group Title
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    how'd you scan that so quickly?

    • 10 months ago
  30. swissgirl Group Title
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    ummm it takes no longer than a half a second to scan

    • 10 months ago
  31. nincompoop Group Title
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    omg my scanner takes like a light year to scan a page

    • 10 months ago
  32. swissgirl Group Title
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    I have an issue I cant draw straight lines -_-

    • 10 months ago
  33. nincompoop Group Title
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    ruler usually solves that problem

    • 10 months ago
  34. swissgirl Group Title
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    lol thats what I usually hafta us

    • 10 months ago
  35. nincompoop Group Title
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    it is less of a technology than a scanner

    • 10 months ago
  36. swissgirl Group Title
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    hahahaha

    • 10 months ago
  37. nincompoop Group Title
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    @shamil98 yo review this LAUGHING OUT LOUD so you can skip 2 years of college in math

    • 10 months ago
  38. swissgirl Group Title
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    Ya I am great at bargaining and I managed to still get warranty coverage after the warranty was over for a year and I complained that the scanning was slow so they sent me a newer model printer which works awesome

    • 10 months ago
  39. nincompoop Group Title
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    can you send me an extra scanner then? I want the fujitsu desktop scanner. the brother machine I have is uber slow

    • 10 months ago
  40. swissgirl Group Title
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    ohhh I kept it and gave it to my bros ato destroy

    • 10 months ago
  41. nincompoop Group Title
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    bought it for 99 bucks just to have something to scan all my lab and experiment draft crap

    • 10 months ago
  42. swissgirl Group Title
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    ummm I have hp

    • 10 months ago
  43. swissgirl Group Title
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    mine was $150 I think

    • 10 months ago
  44. nincompoop Group Title
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    yo I saw the HP one, it's "touch" technology, but it's bulky and it gets smudgie

    • 10 months ago
  45. swissgirl Group Title
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    But I gotta scan in all my work every week so it was a necessity

    • 10 months ago
  46. swissgirl Group Title
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    ya the touch aint bothersome But have not noticed it smudgy but then again I rarely print I usually scan

    • 10 months ago
  47. nincompoop Group Title
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    so do you think you can get the fujitsu desktop scanner? although it's not for high-paper scanning, it's fast and very small

    • 10 months ago
  48. swissgirl Group Title
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    for you or for me???

    • 10 months ago
  49. swissgirl Group Title
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    Not gonna waste my bargaining skills on you :P

    • 10 months ago
  50. nincompoop Group Title
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    http://www.fujitsu.com/us/services/computing/peripherals/scanners/scansnap/scansnap-iX500-deluxe-bundle.html

    • 10 months ago
  51. nincompoop Group Title
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    you're mean ... just mean mean mean cheese

    • 10 months ago
  52. swissgirl Group Title
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    OMG its expensive -_-

    • 10 months ago
  53. swissgirl Group Title
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    Totally not on my budget

    • 10 months ago
  54. nincompoop Group Title
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    it's actually cheaper now. it used to be around 900

    • 10 months ago
  55. swissgirl Group Title
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    ya still dont excite me

    • 10 months ago
  56. nincompoop Group Title
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    I've been waiting for that crap to be like 200 bucks so I can buy it, but they kept discontinuing the older models

    • 10 months ago
  57. swissgirl Group Title
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    Smart guys

    • 10 months ago
  58. nincompoop Group Title
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    blame the canadians ....

    • 10 months ago
  59. swissgirl Group Title
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    Did ya hear ma mayor is a crack head :D

    • 10 months ago
  60. nincompoop Group Title
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    it's fujitfrichinsu, it should be Japan

    • 10 months ago
  61. nincompoop Group Title
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    your mayor? or the re-elected Christie of NJ?

    • 10 months ago
  62. nincompoop Group Title
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    wait he's a governor LAUGHING OUT LOUD

    • 10 months ago
  63. swissgirl Group Title
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    Hey I dont live in NJ remembah

    • 10 months ago
  64. nincompoop Group Title
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    I would have bashed him for being unhealthy fat slob and use that against him he neglects his own health and that is why he doesn't care about other people's health, which is the reason why he keeps cutting the university hospital's budgets

    • 10 months ago
  65. swissgirl Group Title
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    lol ohhh I forgot u live in NJ

    • 10 months ago
  66. nincompoop Group Title
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    I am a New Yorker... LAUGHING OUT LOUD

    • 10 months ago
  67. swissgirl Group Title
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    But u do live in NJ or at least at one point u did

    • 10 months ago
  68. swissgirl Group Title
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    idk I only have one place of residence

    • 10 months ago
  69. nincompoop Group Title
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    don't you live in like NJ, NY and Canada?

    • 10 months ago
  70. swissgirl Group Title
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    I visit those places but I only live in canada. I may be coming into NJ in 2 weeks -_-

    • 10 months ago
  71. nincompoop Group Title
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    laughing out loud

    • 10 months ago
  72. swissgirl Group Title
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    Its not funny!!! idk i may just stay at home alone. Seriously dont wanna head out there

    • 10 months ago
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