July 2022 1 3 Report

Даны векторы a и b такие, что угол(a;b)=5п/6; |a+b*[tex]\sqrt{3}[/tex]|=1; |2a-b [tex]\sqrt{3}[/tex] |= [tex]\sqrt{31}[/tex]
Найдите |3b-2a|

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