phamhungvng's Content
There have been 1 items by phamhungvng (Search limited from 06-06-2020)
$a^2+b^2\geq 2ab$in Bất đẳng thức và cực trịStarted by phamhungvng, 15-11-2017 bdt |
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There have been 1 items by phamhungvng (Search limited from 06-06-2020)
$a^2+b^2\geq 2ab$in Bất đẳng thức và cực trịStarted by phamhungvng, 15-11-2017 bdt |
|