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Convert the rectangular equation to polar form.Assume a > 0x=18

Convert the rectangular equation to polar form.Assume a > 0x=18-example-1
User Kashif Hisam
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1 Answer

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28 votes

To convert a rectangular equation to polar forma, we use


x=r\cos (\theta),y=r\sin (\theta)

In the equation x=18, we only have x, so


\begin{gathered} 18=r\cos (\theta) \\ r=(18)/(\cos(\theta))=18\sec (\theta) \end{gathered}

User Skeetastax
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