Part (a): Inline Mathematical Expression

The formula for the area of a rectangle is \(A = l \times w\),
where \(l\) is the length and \(w\) is the width.

You can also display it as a centered equation:

\[A = l \times w\]


Part (b): Insert an Image

Method 1: Markdown syntax

Company Logo
Company Logo

Method 2: Using R code chunk

knitr::include_graphics("logo.png")