Logarithms

The logarithm of a number is the exponent to which another fixed value, the base, has to be raised to produce that number.

The logarithm of b to base a, if a>0 and a is not 1, is:

Examples:

PROPERTIES:

Examples:

  Exercises:

  1.- Calculate:

  2.- If log2≈0,3, calculate:

   a) log 2000=

   b) log 25=

   c) log 0,2=

Solutions: