Differential Equation of Circles with Centre on x-Axis

Rarely Tested

Differential Equation of Circles with Centre on x-Axis

For:

$$(x-a)^2+y^2=r^2$$

differentiate:

$$x-a+y\frac{dy}{dx}=0$$

Usage

- Used when the centre lies on the x-axis and parameters must be eliminated.

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