# C4 Vectors help

Watch
Announcements
#1
How do you plot vectors such as (3, -4, 10). What I mean is, I have a question where I have to work out the area of a circle with 3 vectors and I don't know how to draw the diagram.
0
#2
bump
0
2 years ago
#3
(Original post by simoncowel)
How do you plot vectors such as (3, -4, 10). What I mean is, I have a question where I have to work out the area of a circle with 3 vectors and I don't know how to draw the diagram.
For 3D vectors it's normally fine just to draw a 2D diagram with the vectors in random places (unless you're given facts about the vectors e.g. that they are perpendicular). There's never any need to visualise what the vector looks like in 3D.

If you still need help please post an example question. Also, always post maths questions in the Maths forum if you want a prompt response. I've moved this thread for you.
0
#4
here's the question

http://pmt.physicsandmathstutor.com/...20products.pdf

question 3.e)
0
2 years ago
#5
(Original post by simoncowel)
here's the question

http://pmt.physicsandmathstutor.com/...20products.pdf

question 3.e)
You can just draw the points in random places. I recommend the videos here which show you how to tackle this question using a diagram:

https://www.examsolutions.net/exampa...-c4-june-2009/

If you have a specific issue with this question then please explain it.
0
#6
(Original post by Notnek)
You can just draw the points in random places. I recommend the videos here which show you how to tackle this question using a diagram:

https://www.examsolutions.net/exampa...-c4-june-2009/

If you have a specific issue with this question then please explain it.
does he mean literally anywhere, like A can be behind B as he drew in the question 7.a) video?
0
2 years ago
#7
(Original post by simoncowel)
does he mean literally anywhere, like A can be behind B as he drew in the question 7.a) video?
Yes it doesn’t matter. If you know specific information about the points apart from their coordinates then make sure you show that on your diagram. Or if you learn more information as you work through the question then you can make changes to the diagram.

If you have time I made a guide which explains how you can make a diagram and work through a question:

https://www.thestudentroom.co.uk/sho....php?t=4620278
0
#8
(Original post by Notnek)
Yes it doesn’t matter. If you know specific information about the points apart from their coordinates then make sure you show that on your diagram. Or if you learn more information as you work through the question then you can make changes to the diagram.

If you have time I made a guide which explains how you can make a diagram and work through a question:

https://www.thestudentroom.co.uk/sho....php?t=4620278
u better be gettin paid for this ****
0
2 years ago
#9
(Original post by simoncowel)
u better be gettin paid for this ****
No it’s all voluntary. I help students on TSR just like others helped me on TSR when I was studying.
0
X

new posts
Back
to top
Latest
My Feed

### Oops, nobody has postedin the last few hours.

Why not re-start the conversation?

see more

### See more of what you like onThe Student Room

You can personalise what you see on TSR. Tell us a little about yourself to get started.

### Poll

Join the discussion

#### Should there be a new university admissions system that ditches predicted grades?

No, I think predicted grades should still be used to make offers (525)
33.78%
Yes, I like the idea of applying to uni after I received my grades (PQA) (642)
41.31%
Yes, I like the idea of receiving offers only after I receive my grades (PQO) (315)
20.27%
I think there is a better option than the ones suggested (let us know in the thread!) (72)
4.63%