Vectors and 3D coordinate geometry: Many of the basic terms and formulae of vectors and 3D geometry cannot be proved without using trigonometric ratios. The following are some tips which will ...

As for the dreaded long questions in Part B, Hui says the more advanced questions revolve around 3D trigonometry and coordinate geometry, which are likely to appear as 12-point questions.

“Firstly, mastering the three main topics within Section B – coordinate geometry, 3D trigonometry and Arithmetic Sequence and Geometric Sequence – is crucial for success,” he said.