M2 chapter 5 - using geometryWatch

Announcements
This discussion is closed.
#1
Hi,
I'm doing some M2 revision and I'm quite stuck on exercise 5D, question 12. I have Solutionbank open as I write this and I think I understand their written method but I cannot see how they know that all of the following angles in the diagram are equal to phi. I believe they have used phi to represent theta (as theta was used to represent the desired angle in the question)

This is probably going to be very obvious when it's pointed out to me but I just cannot see it

Thanks very much for any help.
0
6 years ago
#2
(Original post by Where'sPerry?)
Thanks very much for any help.
I can't see how the angle ABC relates to the other marked angles.

Is there more to the solution, or is that it?
0
#3
(Original post by ghostwalker)
I can't see how the angle ABC relates to the other marked angles.

Is there more to the solution, or is that it?
There is more, sorry, I just wanted to get the diagram in. Here's the rest. The red line is where it carries on from the previous screenshot

0
6 years ago
#4
(Original post by Where'sPerry?)
There is more, sorry, I just wanted to get the diagram in. Here's the rest. The red line is where it carries on from the previous screenshot
I think it's the case that angle ABC should be labelled theta, and all the others labelled phi remain as they are.

So, misprint on diagram.
1
#5
(Original post by ghostwalker)
I think it's the case that angle ABC should be labelled theta, and all the others labelled phi remain as they are.

So, misprint on diagram.
Thanks very much, I was getting so frustrated with this. The answers in the back of this book are horrendous, my teacher actually has a sheet of corrections for it. I shouldn't trust it so much thanks again, I can get on with the question now.

Mods can close the thread if appropriate.
0
3 years ago
#6
how get 3/2L pls help
0
3 years ago
#7
(Original post by cheesedrew)
how get 3/2L pls help
Please create a new thread if you need help, this is from 2013 (!).
0
X
new posts
Back
to top
Latest
My Feed

Oops, nobody has postedin the last few hours.

Why not re-start the conversation?

see more

See more of what you like onThe Student Room

You can personalise what you see on TSR. Tell us a little about yourself to get started.

University open days

• Cardiff Metropolitan University
Sat, 19 Oct '19
• Coventry University
Sat, 19 Oct '19
• University of Birmingham
Sat, 19 Oct '19

Poll

Join the discussion

Why wouldn't you turn to teachers if you were being bullied?

They might tell my parents (11)
6.01%
They might tell the bully (18)
9.84%
I don't think they'd understand (32)
17.49%
It might lead to more bullying (70)
38.25%
There's nothing they could do (52)
28.42%