The following question is similar to June 2008 GCE O Level A-Math Paper question which is testing on the following concepts
Finding coordinates and nature of stationary point (Application of Differentiation)
Watch the video for a few more important tips on handling this sort of question.
This is the step by step video solution for this Plane Geometry question
Inside this video, you will get to know how I begin this question with a clear objective and the steps I took to achieve this objective.
I used 2 strategies (on differentiating the angles) to quickly and easily prove this question.
- Letting an angle be x
- Usage of color (In exams, you can perhaps use different type of lines to differentiate the angles as well)
Hear from you on this approach. If you have your own approach, we would love to hear from you.
Leave me a comment in the section below.