If the normals at three points \( P, Q, R \) of the parabola \( y^{2}=4 a x \) meet in a point \... VIDEO
If the normals at three points \( P, Q, R \) of the parabola \( y^{2}=4 a x \) meet in a point \( O^{\prime} \) and \( S \) be its focus, then \( |S P| \cdot|S Q| \cdot|S R| \) is equal to :https://bit.ly/YTAI_PWAP https://www.pw.live
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