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Hello everybody. Two days ago I my maths teacher gave me time until tomorrow morning to solve the following exercise:
1. Show that in every triangle there is:
cos A + cos B + cos C < 1
a(b+c) b(c+a) c(a+b) 8Rr
But most importantly explain in a few words how you managed to solve it, please
Thank you in advance!
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What are R and r?
Why did the vector cross the road?
It wanted to be normal.
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I see something in there that looks like the law of sines.
A logarithm is just a misspelled algorithm.
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Give u a tip .
R , r are the radius of two circles , scribing the triangle. one is outside , one is inside , I dont know what those are called in English.
Last edited by Stanley_Marsh (2007-05-22 14:36:41)
Numbers are the essence of the Universe
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well I thought R and r are international symbols, but anyway I still have time left till monday to do this assignment, so please help!
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