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brandonloves Group Title

LOG(b2) 3rdroot/2 (typed version after the jump)

  • 2 years ago
  • 2 years ago

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  1. brandonloves Group Title
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    \[\log _{2} \sqrt[3]{2}\]

    • 2 years ago
  2. Dido525 Group Title
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    |dw:1352348272404:dw|

    • 2 years ago
  3. Dido525 Group Title
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    What can you do next?

    • 2 years ago
  4. brandonloves Group Title
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    get rid of the base 2 and the two in the parenthesis?

    • 2 years ago
  5. Dido525 Group Title
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    You have a power in a log.

    • 2 years ago
  6. Dido525 Group Title
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    |dw:1352348442988:dw|

    • 2 years ago
  7. brandonloves Group Title
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    hmm, ok. my teacher added an =X to it first, and then took off the log and made it 2^x

    • 2 years ago
  8. Dido525 Group Title
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    Lot harder...

    • 2 years ago
  9. brandonloves Group Title
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    |dw:1352348582297:dw|

    • 2 years ago
  10. brandonloves Group Title
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    |dw:1352348653250:dw| and then...

    • 2 years ago
  11. Dido525 Group Title
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    Okay that works too...

    • 2 years ago
  12. Dido525 Group Title
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    My way is a lot easier I think though.

    • 2 years ago
  13. Dido525 Group Title
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    |dw:1352348698633:dw|

    • 2 years ago
  14. brandonloves Group Title
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    cool, do you think you could come up with a new example that would work?

    • 2 years ago
  15. Dido525 Group Title
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    Sure.

    • 2 years ago
  16. brandonloves Group Title
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    awesome, that way I can get a fresh go at it

    • 2 years ago
  17. Dido525 Group Title
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    |dw:1352348747232:dw|

    • 2 years ago
  18. Dido525 Group Title
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    Try that.

    • 2 years ago
  19. Dido525 Group Title
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    That's a pi/4 btw.

    • 2 years ago
  20. brandonloves Group Title
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    hm, ok...

    • 2 years ago
  21. brandonloves Group Title
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    |dw:1352348848985:dw| I did it her way, just cuz I've been doing that other one like that...

    • 2 years ago
  22. Dido525 Group Title
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    Okay fine. :p . Hmm...

    • 2 years ago
  23. brandonloves Group Title
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    that anything close to being correct? haha

    • 2 years ago
  24. Dido525 Group Title
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    It is correct.

    • 2 years ago
  25. Dido525 Group Title
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    |dw:1352349005378:dw|

    • 2 years ago
  26. Dido525 Group Title
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    That's a 2*pi btwe.

    • 2 years ago
  27. Dido525 Group Title
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    btw*

    • 2 years ago
  28. brandonloves Group Title
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    ok, I haven't done any of these with pi, so do I just treat it like a number, like 3.1416 or something?

    • 2 years ago
  29. Dido525 Group Title
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    yeah :p .

    • 2 years ago
  30. Dido525 Group Title
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    I prefer exact answers but sure.

    • 2 years ago
  31. Dido525 Group Title
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    I think you get the point though so I will stop. Good job :) .

    • 2 years ago
  32. brandonloves Group Title
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    haha, this whole concept of log is just really new and confusing to me

    • 2 years ago
  33. Dido525 Group Title
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    You are doing fine :) .

    • 2 years ago
  34. brandonloves Group Title
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    I'm just doing the steps as best I can, but I have no clue what it all means. hoping the understanding will come later lol. lemme see what I can do with that one

    • 2 years ago
  35. brandonloves Group Title
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    |dw:1352349332360:dw| pretty sure I messed that up

    • 2 years ago
  36. Dido525 Group Title
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    Yeah you did :P .

    • 2 years ago
  37. brandonloves Group Title
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    haha

    • 2 years ago
  38. Dido525 Group Title
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    |dw:1352349512686:dw|

    • 2 years ago
  39. Dido525 Group Title
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    That was 2 * pi not 2*x*pi .

    • 2 years ago
  40. Dido525 Group Title
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    Anyways, I am getting ahead of myself. You will learn all this soon.

    • 2 years ago
  41. brandonloves Group Title
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    probably so haha. see if you can help me with one like this...

    • 2 years ago
  42. brandonloves Group Title
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    |dw:1352349693033:dw|

    • 2 years ago
  43. Dido525 Group Title
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    |dw:1352349742608:dw|

    • 2 years ago
  44. Dido525 Group Title
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    I should mention: |dw:1352349777605:dw|

    • 2 years ago
  45. brandonloves Group Title
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    log base a to the ath power equals 1?

    • 2 years ago
  46. Dido525 Group Title
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    Log base a of a is 1.

    • 2 years ago
  47. brandonloves Group Title
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    how did you get 1/25 to 5^-5

    • 2 years ago
  48. Dido525 Group Title
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    Reciprocal values.

    • 2 years ago
  49. Dido525 Group Title
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    Sorry I should have said 5^-2.

    • 2 years ago
  50. Dido525 Group Title
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    |dw:1352349972862:dw|

    • 2 years ago
  51. brandonloves Group Title
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    ah

    • 2 years ago
  52. Dido525 Group Title
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    |dw:1352349999623:dw|

    • 2 years ago
  53. brandonloves Group Title
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    ok I see

    • 2 years ago
  54. brandonloves Group Title
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    |dw:1352350166704:dw| so, on parts like this, are you actually "cancelling" the fives? thats how I've understood/been working them.

    • 2 years ago
  55. Dido525 Group Title
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    Well Like I said: |dw:1352350268114:dw|

    • 2 years ago
  56. Dido525 Group Title
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    Proof:|dw:1352350284036:dw|

    • 2 years ago
  57. brandonloves Group Title
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    haha, I feel like I'm so close to getting that.

    • 2 years ago
  58. Dido525 Group Title
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    Okay we know that logs are the inverse of exponential function right?

    • 2 years ago
  59. Dido525 Group Title
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    |dw:1352350446240:dw|

    • 2 years ago
  60. brandonloves Group Title
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    instead of like 1,2,3,4,5 they can represent a different measure of counting, is how I understand them. yes?

    • 2 years ago
  61. Dido525 Group Title
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    Not really...

    • 2 years ago
  62. Dido525 Group Title
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    Logarithms are just the inverse functions of exponential functions.

    • 2 years ago
  63. brandonloves Group Title
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    I'm not quiet sure I follow. I'm close though ha

    • 2 years ago
  64. Dido525 Group Title
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    Okay. |dw:1352350715897:dw|

    • 2 years ago
  65. Dido525 Group Title
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    They are simply inverses.

    • 2 years ago
  66. brandonloves Group Title
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    so like 5^2 is 25, the inverse would be 25 something =5?

    • 2 years ago
  67. brandonloves Group Title
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    the "something" is the part that I'm missing lol

    • 2 years ago
  68. Dido525 Group Title
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    |dw:1352350885891:dw|

    • 2 years ago
  69. brandonloves Group Title
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    awesome, now if I can just remember that. :-)

    • 2 years ago
  70. Dido525 Group Title
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    You will :) .

    • 2 years ago
  71. brandonloves Group Title
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    I guess I'm just trying to get my brain to read "log base 5 to the 25 equals 2" in a way that tells me exactly what i'm trying to do to it

    • 2 years ago
  72. brandonloves Group Title
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    I don't know why thats so difficult for me. it's very annoying

    • 2 years ago
  73. Dido525 Group Title
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    I found logs hard the first time too :) .It's fine. You will get the hang of it.

    • 2 years ago
  74. brandonloves Group Title
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    my teacher goes really fast, so that doesn't help. I mostly just copy everything down, and don't have a chance to think about it

    • 2 years ago
  75. Dido525 Group Title
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    Same Same... I find doing practice problems helps the most.

    • 2 years ago
  76. brandonloves Group Title
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    yea. just trying to take my time and get it to develop into a solid understanding.

    • 2 years ago
  77. brandonloves Group Title
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    |dw:1352351467721:dw| ok, I'm going to try this one, I think I might have it

    • 2 years ago
  78. brandonloves Group Title
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    |dw:1352351563158:dw|

    • 2 years ago
  79. brandonloves Group Title
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    dang. thats not quite it... forgot I had the answer sheet

    • 2 years ago
  80. Dido525 Group Title
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    That right! :O .

    • 2 years ago
  81. brandonloves Group Title
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    Oh, youre right, I just didn't follow it through to x=32 like she did

    • 2 years ago
  82. brandonloves Group Title
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    |dw:1352352361556:dw| it's starting to make a little sense finally

    • 2 years ago
  83. Dido525 Group Title
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    Yep correct :) .

    • 2 years ago
  84. brandonloves Group Title
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    |dw:1352352553761:dw| do I need to multiply the fraction out?

    • 2 years ago
  85. Dido525 Group Title
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    No.

    • 2 years ago
  86. brandonloves Group Title
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    |dw:1352352659947:dw| I'm stuck on the 3rd root part

    • 2 years ago
  87. brandonloves Group Title
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    |dw:1352352937727:dw| isn't that how it works?

    • 2 years ago
  88. brandonloves Group Title
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    hm, no I did something wrong.

    • 2 years ago
  89. brandonloves Group Title
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    |dw:1352353487129:dw| well, I think that will be all I can do tonight. Thanks so much, you are awesome and I really appreciate it.

    • 2 years ago
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spraguer (Moderator)
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is replying to Can someone tell me what button the professor is hitting...

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