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Log base 4 64 without using a calculator

  1. Nov 11, 2004 #1
    i dont understand how to find the exact answer to log base 4 64 without using a calculator. can anyone help?my teacher gave examples but they are on bad photocopies
    sarah
     
  2. jcsd
  3. Nov 11, 2004 #2
    log_4(64) is the number x such that 4^x = 64. Have you tried to guess the solution?
     
  4. Nov 11, 2004 #3
    Hes right.
    [tex]log_4 64 = log_4 4^3 = 3log_4 4 = 3(1) = 3 [/tex]
     
  5. Nov 12, 2004 #4
    thanks guys i totally get itnow and idont feel too stuupid anymore!!
     
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