#1 21. 04. 2018 16:20 — Editoval stuart clark (21. 04. 2018 16:22)
- stuart clark
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Minimum value
If 
be all positive acute angle.Then find least value of 
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#2 21. 04. 2018 18:58
Re: Minimum value
for all positive acute angles 
, applying the AG-inequality gives![$\tan a(\cot b+\cot c)+\tan b(\cot c +\cot a)+\tan c(\cot a+\cot b) \geq 6\sqrt[6]{1} = 6$](/mathtex/12/12110389fd8f718d62d11978e9fc5b90.gif "kopírovat do textarea")
,
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#3 21. 04. 2018 21:01 — Editoval vanok (21. 04. 2018 21:11)
Re: Minimum value
Hi ↑ stuart clark:,
Proof. Other variant.
.
iff 
.
and 
for Srdecne Vanok
The respect, the politeness are essential qualities...and also the willingness.
Do not judge the other one.
Ak odpovedam na nejaku otazku. MOJ PRINCIP NIE JE DAT ODPOVED ALE UKAZAT AKO SA K ODPOVEDI DOSTAT
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