1. 
Find the coordinates of the stationary
points of the curve 

and determine the nature of each point. Sketch
the curve for the values of 

, and lebelling the turning points. 

2. 
Find the coordinates of the stationary
points of the curve 

and
determine the nature of each point. Sketch the 

curve for the values of , and lebelling the turning 

points. 

3. 
The diagram below shows a triangle where AB = 5cm, BC = 7cm and 

in radian. Find the maximum area of the triangle ABC.

