ln and e cancel each other out. Simplify the left by writing as one logarithm. Put in the base e on both sides.

Does log or ln cancel e?

The natural log, or ln, is the inverse of e.

The value of e is equal to approximately 2.71828.

Does ln log cancel?

The logarithms and exponentials cancel each other out (equation (4)), giving our product rule for logarithms, ln(xy)=ln(x)+ln(y).