(9, 75) is same as (9, 75 + 360)
so it would be (9, 435)
It can also be expressed as (-9, 75 + 180 degrees)
so (-9,255) degrees
In general, (9,75+360 n) for n≥0 represents half of the possible ways of representing the point : (9,75)
Overall, below is the complete possible list :
1) (9, 75+360n)
2) (−9, 255+360n)
n = ..... -3, -2, -1, 0, 1, 2, 3....