You are Here: Home >< Maths

# [SOLVED] C4 Help - Double angle rule. watch

1. can someone please help me with this question? I've written a few scribbles down but tbh I don't know where to even start.

p.s. its question 17

hmmm.. its upside down..... save it and turn it around in view program

ty

*edit* dm, solved it ty for trying to help
2. i) I assume you managed to show that angle BAC= theta +60 ? You just need to do basic trig stuff on triangle BAC to get h in terms of theta.
3. (Original post by vc94)
i) I assume you managed to show that angle BAC= theta +60 ? You just need to do basic trig stuff on triangle BAC to get h in terms of theta.
no i cant get theta + 60...
4. If I'm not mistaken this is from the MEI book?
5. (Original post by boromir9111)
If I'm not mistaken this is from the MEI book?

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 12, 2011
Today on TSR

### Uni league tables

Do they actually matter?

### University open days

• Staffordshire University
Everything except: Midwifery, Operating Department Practice, Paramedic Undergraduate
Sun, 21 Oct '18
• University of Exeter
Wed, 24 Oct '18
Wed, 24 Oct '18
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