66Hint: The normal at any point P bisects the angle between the lines SP and S'P where S and S' are the two foci.
show that if a billiard ball is heated inside an ellipse from focus it will always pass along the major axis.(after a finite time)
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5 Answers
66
21got it sir...
when ball is hited from S1 it passes through S2,then after hitting wall it passes through S1
so after a finite time it will be going along the st. line joining S1 and S2 ie major axis////
