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Analytical Geometry

Blazing goIITian

Joined:	16 Dec 2006
Post:	1362

5 May 2008 15:03:02 IST

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789

circle

Engineering Entrance , JEE Main , JEE Advanced , Mathematics , Analytical Geometry

locus of the centres of the circles touching the line 3x - 4y +1 =0 and 12x + 5y -3 =0

Comments (4)

Akhil

Blazing goIITian

Joined: 17 Jan 2008

Posts: 1451

5 May 2008 15:04:48 IST

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it should be same as the combined equation of the lines bisecting the angle between given pair of lines

ashish banga

Blazing goIITian

Joined: 16 Dec 2006

Posts: 1362

5 May 2008 15:11:29 IST

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how

PRATHAB MASTER

Cool goIITian

Joined: 10 Dec 2007

Posts: 83

5 May 2008 15:26:42 IST

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the perpendiculars drawn from any point on the angle bisectors of any two lines meets the lines at equal distance.

this distance will the radius of the circle needed.

so the required locus is the pair of angle bisectors of the two lines.

joy francis

Blazing goIITian

Joined: 19 Feb 2007

Posts: 1802

5 May 2008 15:33:50 IST

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3x + 11y - 4 = 0

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