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Vectors

Hot goIITian

Joined:	7 Aug 2007
Post:	184

14 Mar 2008 14:04:15 IST

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conceptual doubt..vectors

None

hw to find a unit vector along and perpendicular the angle bisectors a n b wid an angle theta bw them?

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Aatish Pandit

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Joined: 3 Feb 2007

Posts: 1200

15 Mar 2008 17:45:21 IST

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I guess the question u wanna ask is.....

A unit vector perpendicular to the plane of two vectors a and b...where theta is angle between them....

this can be found using the concept of cross product.....

say the required unit vector is n (with a cap)

then n = ( a x b ) / magnitude of ( a x b )

I hope this diagram will help u in visualizing it.....

GAURAV SHARMA

Hot goIITian

Joined: 7 Aug 2007

Posts: 184

17 Mar 2008 12:01:52 IST

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WHAT I WANT TO ASK IS:

there are two vectors a and b with theta angle b/w them...then hw to find a unit vector along the angle bisector of a and b.and a unit vector perpendicular to the angle bisector vector....

please read the question,understand and answer it...because if u are not doing it this way,u r wasting ur and my time too..

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