# Derivative review

Learning objectives

• Refresh knowledge of derivatives
• Interpret derivatives as multipliers:  $\Delta z \approx (\hbox{Derivative}) \times \Delta x$ for $z = f(x)$ and $\Delta x$ small
• Review algebraic calculation of derivatives: $e^{kx}$, $a^x$, $x^r$, $\ln x$, $\sin x$, $\cos x$, $\tan x$, $\tan^{-1} x$, product rule, chain rule

Resources

In Class