15 Feb 2018

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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

.46≃2

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=