You are Here: Home >< Maths

# vector watch

1. If the position of vectors of 3 points A B C be
i^ - j^ +k^ ,
2i^+3j^+k^,
3i^-j^+4k^
Find a vector perpendicular to plane ABC
2. First find the dirction of two lines in the plane like A>B and A>C by doing b-a. Then find the cross product of the two lines
3. Find any two of the vectors AB, AC or BC. They are both parallel to the plane ABC. How can you find a vector perpendicular to those two?
4. Thanx

### Related university courses

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: June 21, 2016
Today on TSR

### Edexcel GCSE Maths Unofficial Markscheme

Find out how you've done here

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