You are Here: Home >< Maths

# Vectors C4 Watch

1. When I'm doing questions like part d) I tend to sketch my diagrams like the one below yet the mark scheme has it different.

As you can see this can be problematic as I'll end up using tan instead of sin to find the length of the side.

Can someone explain how I would know which way to draw the diagram?

Attachment 542121542123
Attached Images

2. You would put B on l1 and then "draw" a perpendicular line going to l2 to find the shortest distance !
3. So basically your second diagram!
4. (Original post by Ravster)
When I'm doing questions like part d) I tend to sketch my diagrams like the one below yet the mark scheme has it different.

As you can see this can be problematic as I'll end up using tan instead of sin to find the length of the side.

Can someone explain how I would know which way to draw the diagram?

Attachment 542121542123

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 2, 2016
Today on TSR

...in schools

### I think I'm transgender AMA

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

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