SOLUTION: What type of conic does this represent? r = 4/-2-cosθ or
https://s10.postimg.org/kbq3bkdpl/r_-2_-cos.png
A.) Circle
B.) Ellipse
C.) Hyperbola
D.) Parabola
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Question 1080590: What type of conic does this represent? r = 4/-2-cosθ or
https://s10.postimg.org/kbq3bkdpl/r_-2_-cos.png
A.) Circle
B.) Ellipse
C.) Hyperbola
D.) Parabola
Found 2 solutions by rapture, ikleyn:
Answer by rapture(86) (Show Source): You can put this solution on YOUR website!
It is a circle. Copy and paste.
http://m.wolframalpha.com/input/?i=+r+%3D+4%2F%28-2-cos%CE%B8%29&x=0&y=0
Answer by ikleyn(52835) (Show Source): You can put this solution on YOUR website!
.
How It can be a real curve in polar coordinate while "r" produced by the formula is negative for any and for all ?
This formula represents NO real curve in polar coordinate.
In other words, the formula does not represent any real curve in polar coordinate.
It even does not represent any SINGLE POINT in polar coordinate.
It represents NOTHING, except of author's total/absolute incompetency in the subject.
The reference to another site is not convincing/persuasive.
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Comment from student: Whatever, lol someone else answered simply. It's a "circle." If you don't understand it please refrain from answering. :)
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My response: Everything is OK except one thing: That answer is WRONG.
And one more notice:
The only thing you can say in response to my answer is "Thank you".
Every other your response is WRONG.
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