Turn on thread page Beta
    • Thread Starter
    Offline

    12
    ReputationRep:
    If you have the vector equation of a line that is;
    i + 2j + k + a[2i – 6k]

    Then is it correct to write it as this (i.e. "simplify" the direction vector)?;
    i + 2j + k + a[i – 3k]

    I'm pretty sure it is but just thought I'd quickly check
    Offline

    11
    ReputationRep:
    Yup.
    Offline

    14
    ReputationRep:
    (Original post by n_251)
    If you have the vector equation of a line that is;
    i + 2j + k + a[2i – 6k]

    Then is it correct to write it as this (i.e. "simplify" the direction vector)?;
    i + 2j + k + a[i – 3k]

    I'm pretty sure it is but just thought I'd quickly check
    Yes I think so BUT I would use a different constant, if you used alpha then why not use beta.( saves on confusion)
    Offline

    0
    ReputationRep:
    Yeah, what steve2005 said, It's okay but it could mess things up later if you are trying to find a point or something, so change the constant.
    • Thread Starter
    Offline

    12
    ReputationRep:
    (Original post by steve2005)
    Yes I think so BUT I would use a different constant, if you used alpha then why not use beta.( saves on confusion)
    But isn't the symbol in front of the direction vector a variable though?

    It can take different values can't it?

    But, I see what you're saying and yup a different symbol makes sense too
 
 
 
Reply
Submit reply
Turn on thread page Beta
Updated: January 24, 2010

University open days

  1. Loughborough University
    General Open Day Undergraduate
    Fri, 21 Sep '18
  2. University of Cambridge
    Churchill College Undergraduate
    Fri, 21 Sep '18
  3. Richmond, The American International University in London
    Undergraduate Open Day Undergraduate
    Fri, 21 Sep '18
Poll
Which accompaniment is best?
Useful resources

Make your revision easier

Maths

Maths Forum posting guidelines

Not sure where to post? Read the updated guidelines here

Equations

How to use LaTex

Writing equations the easy way

Student revising

Study habits of A* students

Top tips from students who have already aced their exams

Study Planner

Create your own Study Planner

Never miss a deadline again

Polling station sign

Thinking about a maths degree?

Chat with other maths applicants

Can you help? Study help unanswered threads

Groups associated with this forum:

View associated groups

The Student Room, Get Revising and Marked by Teachers are trading names of The Student Room Group Ltd.

Register Number: 04666380 (England and Wales), VAT No. 806 8067 22 Registered Office: International House, Queens Road, Brighton, BN1 3XE

Write a reply...
Reply
Hide
Reputation gems: You get these gems as you gain rep from other members for making good contributions and giving helpful advice.