5.2a Laws of Logarithms


5.2a Laws of Logarithms

  Law 1:   log a x y = log a x + log a y   Example:   log 5 25 x = log 5 25 + log 5 x   Beware!!   log a x + log a y log a ( x + y )   
  Law 2:   log a ( x y ) = log a x log a y      Example:   log 5 x 25 = log 5 x log 5 25   Beware!!   log a x y log a x log a y   
  Law 3:   log a x m = m log a x   Example:   log 5 y 5 = 5 log 5 y   Beware!!    ( log a x ) 2 2 log a x   


Leave a Reply

Your email address will not be published. Required fields are marked *