# Video Learning

## A-Math: Find Coordinates and Nature of Stationery Point (Plus: Tips to note in Differentiation)

The following question is similar to June **2008 GCE O Level A-Math Paper question** which is testing on the following concepts

**Differentiation involving exponential** (I have written a post on Differentiation of e; post on Basic Differentiation Techniques are available here too )

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.

## Video Solution Of Plane Geometry Question (Plus:Strategy To Handle Angles)

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.