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Question: How to solve the graph in x-y coordinate

Question:How to solve the graph in x-y coordinate

GWANWOO 15 Maple
plot
March 25 2015
0

with(plots);

polarplot(1+2*sin(theta),theta=0..2*Pi);

 

it makes a graph made up of polar coordinate.

i wannna solve the question in cartesian coordinate

i wouldnt come up with ideas to solve it!!

please help me

 

for example)

y= r*sin(theta)

1+2y/r=r

y=(r^2-r)/2

...

...

y=x^n+x^n ....

x= something , something, something

 
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