Given log(base 4) m=a and log(base 12) m = b,
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Given log(base 4) m=a and log(base 12) m = b,

[From: ] [author: ] [Date: 13-03-03] [Hit: ]
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Find log(base 48) 3 in terms of a and b. Please help, thanks!

Answer: (a-b)/(a+b)

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Use the change of base formula and log properties:
Log(b)(a)= loga/ logb in any base
Log(ab)= loga + logb
Log(a/b)= loga -logb
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Given log(base 4) m=a and log(base 12) m = b
Find log(base 48) 3 in terms of a and b.

Log(48)[3] = Log(m)[3] / log(m)[ 48]=

log(m)[12/4] / log(m)[12*4]=

log(m)[12] - log(m)[4]
-------------------------------=
Log(m)[12 ] + log(m)[4]

b-a
------
a+ b


I hope this helps!
1
keywords: base,Given,log,12,and,Given log(base 4) m=a and log(base 12) m = b,
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