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Prove that, the normal to y^(2) = 12x at...

Prove that, the normal to `y^(2) = 12x` at (3,6) meets the parabola again in (27, –18) & circle on this norma l chord a s diameter is `x^(2) + y^(2) - 30x + 12y - 27 = 0.`

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