Law of Indices
40 is
one
what does the a meaning in logax
a= base
Division Law
once the bases are the same powers should be subtracted
107 / 105=
102=100
Evaluate log28=
3
•The multiplication of two logarithmic values is equal to the addition of their individual logarithms.
Product Rule
3m2 x 4m7=
3 x 4 x m2+7= 12m9
The exponential form of log9x = 3 is
x=93
which law states that when the bases are the same the powers must be added
multiplication Law
logbx=y in index form is
by=x
log28+log24=
=5
log28=23
log24=22
therefore 3+2=5
Quotient Rule
The division of two logarithmic values is equal to the difference of each logarithm.
93=729 in log form is
log9729=3
solve for the value of x for log3 x= log3 4+ log3 7
x= 28.
Logb (mn) = n logb m demonstrate the
Power Rule