How do you convert y = sqrt(3)xy=3x into polar form?

1 Answer
Dec 4, 2015

Use these identities ...
x=rcosthetax=rcosθ
y=rsinthetay=rsinθ

Explanation:

Using substitution , insert the identities above into the equation:

rsintheta=sqrt3xxrcosthetarsinθ=3×rcosθ

r(sintheta -sqrt3costheta)=0r(sinθ3cosθ)=0

sintheta=sqrt3costhetasinθ=3cosθ

tantheta=sqrt3tanθ=3

theta=pi/3θ=π3

So, polar form is a straight line : theta = pi/3θ=π3

hope that helped