Comments on: Proof of Cosine Rule http://trevorpythag.co.uk/2008/mathematics/trigonometry/proof-of-cosine-rule/ Maths help and revision for GCSE, A/AS Level and Further Maths Thu, 17 May 2012 08:44:32 +0000 hourly 1 http://wordpress.org/?v=3.3.2 By: Tim Tylor http://trevorpythag.co.uk/2008/mathematics/trigonometry/proof-of-cosine-rule/comment-page-1/#comment-15952 Tim Tylor Thu, 29 Mar 2012 22:49:23 +0000 http://trevorpythag.wordpress.com/?p=22#comment-15952 Unfortunately the diagram of the triangle isn't showing, and it's hard to follow the description without it. Unfortunately the diagram of the triangle isn’t showing, and it’s hard to follow the description without it.

]]> By: Bill Dessens http://trevorpythag.co.uk/2008/mathematics/trigonometry/proof-of-cosine-rule/comment-page-1/#comment-37 Bill Dessens Fri, 29 Aug 2008 04:00:39 +0000 http://trevorpythag.wordpress.com/?p=22#comment-37 I'm trying to justify your "magic number" of 17.817. I guess I don't understand where you're coming from, as the 12th root of 2 is not the above figure, but closer to 1.05946309 - - -. What am I misunderstanding? I’m trying to justify your “magic number” of 17.817. I guess I don’t understand where you’re coming from, as the 12th root of 2 is not the above figure, but closer to 1.05946309 – - -. What am I misunderstanding?

]]> By: dougaj4 http://trevorpythag.co.uk/2008/mathematics/trigonometry/proof-of-cosine-rule/comment-page-1/#comment-36 dougaj4 Thu, 29 May 2008 00:13:43 +0000 http://trevorpythag.wordpress.com/?p=22#comment-36 Wordpress generated a link here from my blog: http://newtonexcelbach.wordpress.com/2008/05/18/elegant-proofs-1/ This is a very simple proof of Pythagoras' theorem. It's not in Chinese, but it has very few words, so would be easy to translate :) WordPress generated a link here from my blog:
http://newtonexcelbach.wordpress.com/2008/05/18/elegant-proofs-1/

This is a very simple proof of Pythagoras’ theorem. It’s not in Chinese, but it has very few words, so would be easy to translate :)

]]> By: lawal http://trevorpythag.co.uk/2008/mathematics/trigonometry/proof-of-cosine-rule/comment-page-1/#comment-35 lawal Fri, 14 Mar 2008 08:30:13 +0000 http://trevorpythag.wordpress.com/?p=22#comment-35 i need a chinese proof of pythagoras rule i need a chinese proof of pythagoras rule

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