Asked by Sandy East Ward
How would I rewrite this in rectangular form? //
r = 8 sin theta - 2 cos theta?
I apologize, there was an error before.
r = 8 sin theta - 2 cos theta?
I apologize, there was an error before.
Answers
Answered by
Steve
so, you couldn't fix it and finish it off? The method was right in front of you ...
r = 8sinθ - 2cosθ
r^2 = 8r sinθ - 2r cosθ
x^2+y^2 = 8y-2x
That's ok as an equation, but I suspect you want a more standard form, so keep working it, completing the squares:
x^2+2x + y^2-8y = 0
x^2+2x+1 + y^2-8y+16 = 1+16
(x+1)^2 + (y-4)^2 = 17
r = 8sinθ - 2cosθ
r^2 = 8r sinθ - 2r cosθ
x^2+y^2 = 8y-2x
That's ok as an equation, but I suspect you want a more standard form, so keep working it, completing the squares:
x^2+2x + y^2-8y = 0
x^2+2x+1 + y^2-8y+16 = 1+16
(x+1)^2 + (y-4)^2 = 17
There are no AI answers yet. The ability to request AI answers is coming soon!
Submit Your Answer
We prioritize human answers over AI answers.
If you are human, and you can answer this question, please submit your answer.