How do you convert #r = 7# into cartesian form?

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Answer 1 · 2017-01-30T13:43:57

#x^2+y^2=49#

Covesion formula for Polars to cartesian;

#r^2=x^2+y^2#

#x=rcostheta#

#y=rsintheta#

for #r=7=>r^2=49#

#:.x^2+y^2=49#

a circle centre #(0,0)" radius " 7#