Please check my work. polar coordinates of (x,y) = (0,-30)

[shivers20]

In an x-y coordinate system the point P is (0,-30). The polar coordinates of the point P are...

Magnitude = 30
Direction = - 90°
30 /_-90° is answer. Is this correct?

 

[Deleted member 4993]

Re: Please check my work. polar coordinates of (x,y) = (0,-3

In an x-y coordinate system the point P is (0,-30). The polar coordinates of the point P are...

Magnitude = 30
Direction = - 90° =3/2 *[pi]

the coordinate in (r, theta) system would be (30, 3/2 *[pi])

30 /_-90° is answer.

Is this correct?

 

[Loren]

That will do but the form should be (30,-90°) or (30,270°) or \(\displaystyle (30,\frac{3}{2}\pi)\) or \(\displaystyle (30,\frac{-\pi}{2})\)