How do I solve problems in two and three dimensions?
In this post, we will be solving problems involving the use of trigonometry in two and three dimensions with the use of a diagram, as a part of the Prelim Maths Advanced course under the topic Trigonometric Functions and sub-part Trigonometry. We interpret information about a two or three-dimensional context given in a diagrammatic or written form and construct diagrams where required.
Solving problems in two dimensions
The video below goes through a fair enough of questions involving trigonometry and diagrams in two dimensions.
Solving problems in three dimensions
These following four videos run over three-dimension trigonometry questions, breaking down the thought process as you go along.