You are Here: Home >< Maths

# Vectors help Watch

1. http://www.ocr.org.uk/Images/59552-q...hematics-4.pdf

Question 9i)

I can't visualize the angle that needs to be found...
2. (Original post by IShouldBeRevising_)
http://www.ocr.org.uk/Images/59552-q...hematics-4.pdf

Question 9i)

I can't visualize the angle that needs to be found...
Draw a sketch.
3. (Original post by IShouldBeRevising_)
http://www.ocr.org.uk/Images/59552-q...hematics-4.pdf

Question 9i)

I can't visualize the angle that needs to be found...
It is not easy to visualize it, but you don't really need to. Essentially what you have to do is find the point P and then find the angle. Hint: Use the scalar product.
4. find the position of point p.
then the co-ordinates of point p are also the position vector OP.
then use |a||b|=a.b/cos(x)
by subbing in OP as a and the vector of the line L (1,-1,2) as b then solve
5. (Original post by Goods)
find the position of point p.
then the co-ordinates of point p are also the position vector OP.
then use |a||b|=a.b/cos(x)
by subbing in OP as a and the vector of the line L (1,-1,2) as b then solve

(Original post by Ateo)
It is not easy to visualize it, but you don't really need to. Essentially what you have to do is find the point P and then find the angle. Hint: Use the scalar product.

(Original post by Music99)
Draw a sketch.
Thank you
6. Thanks for the informative specially for me as I am a B.Sc maths Student and having so many difficult problems in maths. The easiest thing in maths is the only matrix. .

Thanks again for helping this problem !!!

TSR Support Team

We have a brilliant team of more than 60 Support Team members looking after discussions on The Student Room, helping to make it a fun, safe and useful place to hang out.

This forum is supported by:
Updated: April 6, 2013
Today on TSR

### How to stand out in an Oxbridge interview

What makes you memorable?

### A pregnant woman visits me every night

Discussions on TSR

• Latest
• ## See more of what you like on The Student Room

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

• Poll
Useful resources

### Maths Forum posting guidelines

Not sure where to post? Read the updated guidelines here

### How to use LaTex

Writing equations the easy way

### Study habits of A* students

Top tips from students who have already aced their exams

## Groups associated with this forum:

View associated groups
Discussions on TSR

• Latest
• ## See more of what you like on The Student Room

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

• 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