We shall first introduce this concept, and discuss the laws, which will have to be
followed in working with logarithms, and then apply this technique to a number of problems to show
how it makes difficult calculations simple We know that
23 = 8, 32 = 9, 53 = 125, 70 = 1
In general, for a positive real number a, and a rational number m, let am = b,
where b is a real number In other words
the mth power of base a is b Another way of stating the same fact is
logarithm of b to base a is m