Consider the circle with centre at the origin and radius 5 units. The points P(3,4) and Q(4,3) lie on this circle. Answer the following.
(i) Verify that the points P and Q lie on the given circle.
(ii) Find the coordinates of the midpoint M of PQ and hence determine the length OM.
(iii) Calculate the length of chord PQ.
(iv) Determine the slope of PQ and the slope of OM. What do you observe about the product of these slopes?