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Author Topic: CIE MATHS P3 HELP  (Read 846 times)

Offline highly_ambitious

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CIE MATHS P3 HELP
« on: December 15, 2009, 02:13:03 pm »
Q: Find the vector equation of the line 'l' containing the points [1,3,1] and [1,-3,-1]. Find the perpendicular distance of the point with coordinates [2,-1,1] from l.

I have tried solving the question but, didn't got the right answer.
My answer : sqrt[65]/5
Book's ans:  [21/5]sqrt[15]

please help me solve this...
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Offline highly_ambitious

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Re: CIE MATHS P3 HELP
« Reply #1 on: December 15, 2009, 04:08:58 pm »
guys, please reply

I need your help.
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Offline astarmathsandphysics

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Re: CIE MATHS P3 HELP
« Reply #2 on: December 15, 2009, 06:04:47 pm »
When hiat home
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Offline astarmathsandphysics

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Re: CIE MATHS P3 HELP
« Reply #3 on: December 15, 2009, 11:21:21 pm »
Didnt get either answer
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Offline highly_ambitious

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Re: CIE MATHS P3 HELP
« Reply #4 on: December 16, 2009, 07:33:55 am »
I 've done it this way.
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