Algebra
LOGARITHMS
Example 3:
Calculate 3log10 2.
Solution:
Rule 3.
logb (An) = nlogb A
3log10 2
= log10 (23)
= log10 8
= 0.903
Example 4:
Calculate 4log10 10.
Solution:
Rule 4.
logb b = 1
4log10 10
= 4(1)
= 4
Example 5:
Calculate (1/3)log10 2.
Solution:
Rule 5.
logb
= logb A1/n = (1/n)logb A
n
A
(1/3)log10 2
= log10
3
2
= log10 1.259
= 0.1003
Rev. 0
Page 67
MA-02
