We’ve now covered the derivatives of logarithmic and trigonometric functions, and the questions below involve applications of those derivative results.
For logarithmic functions, you may find it easier to simplify some expressions using the properties of logarithms before you try to differentiate. See the list of properties of logarithms at the bottom of page 376, and you can see an example of how these can simplify your calculations in Example 12 on page 377.
Exercise 15F 1ghk, 2adeh, 3abegi, 5
Exercise 15G 1adgh (see page 379 for more about the derivative of \(\tan x\), 2adgk, 3bek, 4b