explain logarithms ?
Logarithms simplify elaborated calculations and they are applied not only inside mathematical field, but other scientifical fields such that: chemistry (pH), biology(nautilus' shell), Earth science, psychology, astronomy, music.
The idea of function helps in the thorough study of logarithms.
The exponent to which a base a is raised is the logarithm of the number that results raising the base "a" to the exponent.
Solving for x the exponential equation `a^x = y` , came up with this conclusion.
`a^x = y =gt x*log_a (a) = log_a (y)`
But `log_a (a) = 1 =gt x = log_a (y)`
`` `a^(log_a (y)) = y`
The solution to this equation, `x = log_a (y), ` is unique.