# Replace the Cartesian equation with equivalent polar equations. x = y

Replace the Cartesian equation with equivalent polar equations. $$x = y$$

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Arnold Odonnell

The given Cartesian equation is $$x=y$$.
Write the expression for relation between Cartesian and polar equations as follows:
$$x=r\cos\theta$$
$$y=r\sin\theta$$
$$r^{2}=x^{2}+y^{2}$$
$$\tan\theta=\frac{y}{x}$$