Help with a maths problem

peige

peige

peige

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18 Oct 2002
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Trying to help with a maths question on an assigment my Son is doing, he's had several stabs at it but is struggling, his collage seem not interested in helping dispite being asked.
As a side issue I'm thinking about getting one of those skype type tutors to help as "lecturing" maths just doesn't seem to work.

Anyway, can you help with below? I'm good at SOHCAHTOA but this is beyond me :o

 
He's studying Engineering level 3 which has a lump of A leveled maths stuck in for good measure. Just like me, enjoys the pratical and the relavent theory but struggles with some of the more abstract theory :) Years on I still use Sin/Cos/Tan to calculate CNC cordinates or missing features on drawings but some of this other stuff is hard to find relavent!

Reeve, top work! Thats sparked with the little he understood to get him going, he's now working the calculations out and drawing out the diagram :cool:

The question says he needs the use the Sin rule too, so now we are puzzelling over that!

/edit Ah, I see you've noticed that!
 
Reeve said:
sinA/a = sinB/b

Where a = V2, A= phase angle, b = V3, B = Pi - phi(?)

Someone confirm this :p
Click to expand...

He has no idea what phi is so we don't think that can be part of the answer given that he's supposed to have been taught how to do it and doesn't recall phi at all :o
 
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