IGCSE/GCSE/O & A Level/IB/University Student Forum

Qualification => Subject Doubts => GCE AS & A2 Level => Math => Topic started by: highly_ambitious on December 15, 2009, 02:13:03 pm

Title: CIE MATHS P3 HELP
Post by: highly_ambitious 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...

Title: Re: CIE MATHS P3 HELP
Post by: highly_ambitious on December 15, 2009, 04:08:58 pm

guys, please reply

I need your help.

Title: Re: CIE MATHS P3 HELP
Post by: astarmathsandphysics on December 15, 2009, 06:04:47 pm

When hiat home

Title: Re: CIE MATHS P3 HELP
Post by: astarmathsandphysics on December 15, 2009, 11:21:21 pm

Didnt get either answer

Title: Re: CIE MATHS P3 HELP
Post by: highly_ambitious on December 16, 2009, 07:33:55 am

I 've done it this way.