You are Here: Home >< Maths

# Incredibly annoying M4 problem. (Vectors)

Announcements Posted on
Why bother with a post grad? Are they even worth it? Have your say! 26-10-2016
1. So, that's the problem statement :
and that's the solution:

Attachment 521801521803
Now the annoying bit is, if you try to work out Vw using the Sine rule with the triangle S2BA, you will get the wrong answer. How the hell is this even possible?
Attached Images

2. Zacken TeeEm any ideas?
3. (Original post by oShahpo)
So, that's the problem statement :
and that's the solution:

Attachment 521801521803
Now the annoying bit is, if you try to work out Vw using the Sine rule with the triangle S2BA, you will get the wrong answer. How the hell is this even possible?
Perhaps I'm being dense, but I fail to see why triangle ABC is isosceles.
4. (Original post by ghostwalker)
Perhaps I'm being dense, but I fail to see why triangle ABC is isosceles.
The other two right triangles are congruent. They have an equal side (Vship) and equal angles.
5. (Original post by oShahpo)
The other two right triangles are congruent. They have an equal side (Vship) and equal angles.
Must be extra dense - can you give me the set of vertices for each of the two congruent triangles.

## 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: April 12, 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

### Who is getting a uni offer this half term?

Find out which unis are hot off the mark here

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