Mr.Ng is conducting a A Math test on FRIDAY :
Chapter 14 Differentiation ( study the previous test for we did badly ).
Chapter 15 Rate of change.
Chater 16 Maxima and Minima.
Stop slacking guys, O level is getting nearer and nearer .. STUDY HARD OKAY !
Oh no i spawn already gg wtf bbq i go defuse the bomb first !

Rate of change, chapter 15 worked solutions.
http://www.mediafire.com/?r1ic2mgzq2j

Maxima and Minima, chapter 16 worked solutions.
http://www.mediafire.com/?nn2z21wxmln