How do you write the equation using polar coordinates given #x^2+y^2=x#?

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Answer 1 · 2016-08-28T23:50:20

#r = cos theta#

Using the pass equations

#{ (x = r cos theta), (y=r sin theta) :}#

after the substitution

#r^2 cos^2 theta + r^2sin^2theta = r cos theta#

or

#r^2=r cos theta#

Finally

#r = cos theta#