Question

Convert 3.2i - 2.9j to polar coordinates. Help??

Answer 1

Ok, polar coordinates are (magnitude, angle) or (r, theta)

In a plane with vectors i and j, you should draw your Cartesian plane

Let me skip ahead to the answer
theta = 42.18 degrees
\[r =\sqrt{18.65}\]

Answer 2

It says i need 4 forms for the point?

Answer 3

I wrote h for hypotenuse, but I really meant to use r for the magnitude of the vector

Answer 4

what does 4 forms mean?

Answer 5

it means 4 different ways to right the polar coordinates.

Answer 6

you mean "write" not "right"

Answer 7

oops, yes i meant write

Answer 8

Did you know that the same point in polar coordinates can be written differently by adding or subtracting 360 degrees from theta.

Also, since theta only references the number of degrees from the x axis (or in your case the i axis), you can also use a negative number of degrees equal to theta - 360

Answer 9

Are you OK with converting your Cartesian coordinates (i,j) into polar coordinates, using inverse tangent and such?

Answer 10

good to know, and im alright with converting them