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Question #3ca54

1 Answer

Feb 28, 2018

#y^2=25-10x#

Explanation:

#r=5/(1+cost)#

#r*(1+cost)=5#

#r+rcost=5#

After using #r=sqrt(x^2+y^2)# and #rcost=x# transforms,

#sqrt(x^2+y^2)+x=5#

#sqrt(x^2+y^2)=5-x#

#x^2+y^2=(5-x)^2#

#x^2+y^2=x^2-10x+25#

#y^2=25-10x#

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