Results 1 to 1 of 1

Math Help - Logarithm Help Please Asap

  1. #1
    Newbie
    Joined
    Sep 2005
    Posts
    11

    Unhappy Logarithms and Exponentials Help Please Asap! ! !

    AAAGH i dont understand ANY of these questions , please someone help, its desperate, thankssssss tonnes



    in these questions i will type logs as log[2]16
    = log to the base 2 of 16.


    3) Given that p= log[q]16
    express in terms of p:

    a) log[q]2
    b) log[q](8q)



    4)
    a) Given that log[3] x = 2, determine the value of x
    b) Calculate the value of y for which 2log[3]y - log[3](y+4) = 2
    c) Calculate the values of z for which log[3]z = 4log[z]3


    6)
    Solve, giving your answers as exact fractions, the simultaneous equations:
    8^y = 4 ^2x+3
    log[2]y = log[2]x + 4

    7)
    Find the values of x for which log[3]x - 2log[x]3 = 1

    8)
    Solve the equation

    log[3](2-3x) = log[9](6x^2 - 19x +2)

    9)
    If xy=64 and log[x]y + log[y]x = 5/2, find x and y.


    12)
    a) Given that 3 + 2log[2]x = log[2]y, show that y = 8x^2
    b) Hence, or otherwise, find the roots alpha and beta, where alpha < beta, of the equation 3 + 2log[2]x = log[2](14x - 3)
    c) Show that log[2]alpha = -2
    d) Calculate log[2]beta, giving your answer to 3 s.f.
    Last edited by emydawn; September 28th 2005 at 02:15 PM. Reason: title change
    Follow Math Help Forum on Facebook and Google+

Similar Math Help Forum Discussions

  1. Replies: 3
    Last Post: July 18th 2011, 08:04 AM
  2. Replies: 3
    Last Post: March 6th 2009, 07:54 PM
  3. need help ASAP
    Posted in the Algebra Forum
    Replies: 2
    Last Post: June 5th 2008, 12:35 PM
  4. Need Help Asap!!!
    Posted in the Algebra Forum
    Replies: 1
    Last Post: May 27th 2008, 05:16 AM
  5. Need help ASAP
    Posted in the Trigonometry Forum
    Replies: 1
    Last Post: May 20th 2008, 06:21 AM

Search Tags


/mathhelpforum @mathhelpforum