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.

tckok says

There is a small error in your video clip on "A-Math: Find Coordinates and Nature of Stationery Point (Plus: Tips to note in Differentiation)" if I m not wrong.

-2x 4x 4x -2x

-4e (e - 3) + 4e (2e )

-2x 4x 4x

= 4e ( -e + 3 + 2e )

-2x 4x

= 4e ( e + 3)

alwaysLovely says

Thanks for informing me about it.

I have updated the changes.

:)