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20. Tangents are drawn from the points on the line x-y+3=0 to parabola y²=8ax. Then the variable chords of contact pass through a fixed point whose coordinates are

Answer» 20. Tangents are drawn from the points on the line x-y+3=0 to parabola y²=8ax. Then the variable chords of contact pass through a fixed point whose coordinates are


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