perplexus.info :: Just Math : Any triangle, Trigonometric function

Any triangle, Trigonometric function - second episode! (Posted on 2007-11-18)

Prove that in any triangle cos(A)+cos(B)+cos(C)>1

See The Solution Submitted by Chesca Ciprian

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| Comment 11 of 12 |

Thanks to all.

Posted by Praneeth on 2007-11-21 02:50:04

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