MA129 Lecture 8: Logs Change of Base

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Lecture 8 - logs change of base
og x log x / log xl a= b b
og 15 log 15 / log 3l3=
OR
n 15 / ln 3l
.462
og (x) 4l2+ 1 =
22log (x+1)
2= 4
2x+ 1 = 4
15x=
og 8 3/4ly=
y ylog 8
y= 3/4
y8 = 3/4
(y)84/3 = 3/4 4/3
8y= 3/4
(8 )y= 1/3 4
2y= 4
16y=
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