Logarithm law 2

    Since a^(1) = a
then, log a (a) = 1

For example

 log 2 (2) = 1

 log 87 (87) = 1

 log 37 (37) + 1 = 38

 log 41 (41) * 100 = 100

 log 53 (53) * 3 = 3

 log x (x) + 2yx = 1 + 2yx

 log x (x) / x = 1/x