Hard Circle geometry question (1 Viewer)

[mathsbrain]

Hi Guys,

For those who have Maths Extension 2 written by S.K. Patel, maybe you can help with this challenging question that i have been stuck for so long on. It's on page 300, ex 10c question 2.

Thanks in advanced for those who can help.

 

[deswa1]

Can you scan the question? I don't have the book.

 

[asianese]

PS How do you attached photos to the post (without having to have an external link)

 

[math man]

Question is pretty hard, but what you do is apply cos rule 4 times

 

[asianese]

Dammit patel haha

 

[math man]

i really like this question, beats terry

 

[Carrotsticks]

Lol'd math man at your diagram. That's the biggest 45 degrees I have ever seen. Will post an alternative solution (hopefully shorter too!) when I get to work.

 

[Carrotsticks]

Don't have my trusty tablet here at work, so here's a quick overview of the proof:

 

[iSplicer]

Don't have my trusty tablet here at work, so here's a quick overview of the proof:

Fuarrrr

 

[math man]

Carrot your proof is a question I remember
From a q8 trial a few years ago

 

[Carrotsticks]

Haha, I have no idea!