SOLUTION: HELP ! Need to solve this: a)log8 1/4 b)log4 3√16 c)log8 5√2 Thanks !

Algebra ->  Exponential-and-logarithmic-functions -> SOLUTION: HELP ! Need to solve this: a)log8 1/4 b)log4 3√16 c)log8 5√2 Thanks !      Log On


   

Question 987611: HELP ! Need to solve this:
a)log8 1/4
b)log4 3√16
c)log8 5√2
Thanks !
Answer by Alan3354(69443) About Me  (Show Source):
You can put this solution on YOUR website!
a)log8 1/4
Use the base change formula.
log%288%2C%281%2F4%29%29+=+log%281%2F4%29%2Flog%288%29
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b)log%284%2C3sqrt%2816%29%29
Use the base change formula.
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c)log8 5sqrt(2)
Use the base change formula.