7­5.notebook
February 26, 2013
Log Properties
Product: log5 2x = log5 2 + log5 x
Quotient: log5 2/x = log5 2 ­ log5 x
Power: log5 x2 = 2 log5 x
Expand
log6 5x3
y
log 7a4
log3 4x
lnx3y4
w2
log3 √7x
log7 7ab3
1
7­5.notebook
February 26, 2013
Log Properties
Product: log5 2x = log5 2 + log5 x
Quotient: log5 2/x = log5 2 ­ log5 x
Power: log5 x2 = 2 log5 x
Condense
log4 2 ­ log4 19
3 ln w + 5 ln m
log 4 + 3 log 2 ­ log x
3(log 10 ­ log 5) + 1/4 log 16
log 9 + 3 log 2 ­ log 3
1/3 ln 8 + 1/2 ln 3
2
7­5.notebook
February 26, 2013
Change of Base
logb x = log x = ln x
log b ln b
log5 8
log8 14
log26 9
log12 30
TI­84 plus
Math
A: logBASE
3