The point in rectangular co-ordinates is .

Graph :

1). Draw a polar-coordinate plane.

2). Plot the point .

Graph of the point .

3). Divide the entire cycle into 12 polar sectors.

.

4). Observe the above graph, the angle should be less then .

5). It is appears to be .

6). From the graph, the distance from the pole to the polar point is approximately

2.8.

7). Thus, the one set of the polar coordinates for the point is .

The one set of the polar coordinates for the point is .