http://bravchick.livejournal.com/ ([identity profile] bravchick.livejournal.com) wrote in [personal profile] bravchick 2012-09-10 04:11 pm (UTC)

Меня восхитило даже не то, что это написано в учебнике по алгебре, а то, с какой уверенностью и определенностью дается ответ.
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