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if the normals at three points P,Q,R of the parabola y^2=4ax meet in a point O and S be its focus,then |SP|.|SQ|.|SR| is equal to

anusha , 10 Years ago
Grade 12
anser 1 Answers
Sourabh Singh

Last Activity: 9 Years ago

You can use the cubic equation of normal to parabola.SP,SQ,SR are nothing but distance from origin which can be used in parametric form.

Use cubic equation to get the relations which will be required in answers

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