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Analytical Geometry

Hot goIITian

 Joined: 27 Oct 2009 Post: 106
4 Dec 2010 13:02:28 IST
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in a parabola,find the locus of mid points of all the chords which subtend right angle at the vertex
Engineering Entrance , JEE Main , JEE Advanced , Mathematics , Analytical Geometry

in a parabola,find the locus of mid points of all the chords which subtend right angle at the vertex of a parabola?

Hot goIITian

Joined: 27 Oct 2009
Posts: 106
4 Dec 2010 17:36:48 IST
0 people liked this

Hot goIITian

Joined: 27 Oct 2009
Posts: 106
4 Dec 2010 17:36:50 IST
0 people liked this

Blazing goIITian

Joined: 27 May 2010
Posts: 624
4 Dec 2010 19:00:31 IST
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firstly write the eqn of chord bisected at the mid pt. which is T = S1

then homogenise  it with the parabola eqn

and then do the sum of coefficients of x^2 and y^2 = 0 to get a condn....

Hot goIITian

Joined: 27 Oct 2009
Posts: 106
4 Dec 2010 19:48:26 IST
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sorry but i didn get it...........are you telling from the solns of bt's module.................wat is this concept of homogenising? can you please elaborate??????//

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