A-Level Maths Edexcel (9MA0)

Know and use the definition of $\log_a{x}$ as the inverse of $a^x$, where $a$ is positive and $x ≥ 0$ and $a ≠ 1$.

Know and use the function $\ln{x}$ and its graph.

Know and use $\ln{x}$ as the inverse function of $e^x$.

Solution of equations of the form $e^{ax+b} = p$ and $\ln{(ax+b)} = q$ is expected.