1.

A ray emitting from the point (−3,0) is incident on the ellipse 16x2+25y2=400 at point P with an ordinate 4. If the equation of the reflected ray after first reflection is 4x+3y=k, then the value of k is

Answer»

A ray emitting from the point (3,0) is incident on the ellipse 16x2+25y2=400 at point P with an ordinate 4. If the equation of the reflected ray after first reflection is 4x+3y=k, then the value of k is



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