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[" Let the normal to parabola "y^(2)=4ax...

[" Let the normal to parabola "y^(2)=4ax" at "],[P" meets the curve again in "Q" .If "PQ" and "],[" the normal at "Q" makes angles "alpha" and "],[beta" respectively with the positive "x" -axis in "],[" positive direction,then "tan alpha(tan alpha+tan beta)],[" is equal to "],[" Your Answer "]

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