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If y = mx is the equation of a chord of ...

If y = mx is the equation of a chord of the circle `x^2+y^2-2ax=0` with radius a, prove that the equation of the circle on this chord as a diameter is `(1+m^2)(x^2+y^2)-2a(x + my)=0`.

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PATHFINDER-CIRCLE-QUESTION BANK
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