Determine composite and inverse functions for trigonometric, logarithmic, exponential or algebraic functions as part of Bitesize Higher Maths ...

Determining composite and inverse functions. Composite and inverse functions can be determined for trigonometric, logarithmic, exponential or algebraic functions. Links. BBC Podcasts: Maths.

The natural log is just the inverse of the exponential function, so it makes e go away, leaving a simple linear function on the right side: a × t.