- #1
merry
- 44
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r = cos(theta) in polar coordinates??
Hullo everyone!
Hows it going?
I am confused with how to interpret the graph of r = cos(theta) in polar coordinates.
I tried graphing it manually. and this is how I interpreted it:
r(0) = cos(0) = 1
r(pi/2) = 0
r(-pi) = -1
r(3pi/2) = 0
r(2pi) = 1
This gives me three points in a line @.@ with one on the negative x axis, one on the origin, and one on the positive x axis. But apparently, its supposed to be a circle; how so?
Could someone please explain where I am going wrong?
Thanks v. much!
Hullo everyone!
Hows it going?
I am confused with how to interpret the graph of r = cos(theta) in polar coordinates.
I tried graphing it manually. and this is how I interpreted it:
r(0) = cos(0) = 1
r(pi/2) = 0
r(-pi) = -1
r(3pi/2) = 0
r(2pi) = 1
This gives me three points in a line @.@ with one on the negative x axis, one on the origin, and one on the positive x axis. But apparently, its supposed to be a circle; how so?
Could someone please explain where I am going wrong?
Thanks v. much!