You are Here: Home >< Maths

# FP3 vectors - shortest distance

Announcements Posted on
Why bother with a post grad course - waste of time? 17-10-2016
1. Can someone explain how to do this.

I tried using the formula

a-c = 6i-7j

and bxd is the direction vectors multiplied but one of them doesn't have a direction?

Im confused ;(
Attached Images

2. The direction of the first line is j since s is the scalar product. It would look like this: [3i +0j -k +s(0i +j +0k)]

I see you mistook the s for a 5 xD.
3. Like Pyslocke said, s is the parameter for the first vector equation. Here is what you do (I left out doing b x d because you should be able to do it.)

I was unable to put the LaTeX into the thread, for some reason the commands don't work here...?
Attached Images
4. untitled-1.pdf (57.5 KB, 14 views)

## Register

Thanks for posting! You just need to create an account in order to submit the post
1. this can't be left blank
2. this can't be left blank
3. this can't be left blank

6 characters or longer with both numbers and letters is safer

4. this can't be left empty
1. Oops, you need to agree to our Ts&Cs to register

Updated: June 16, 2016
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:
Today on TSR

### A level maths

Which modules should I take?

Poll
Useful resources

### Maths Forum posting guidelines

Not sure where to post? Read here first

### How to use LaTex

Writing equations the easy way

### Study habits of A* students

Top tips from students who have already aced their exams