Предмет: Алгебра, автор: bery2016

2cos x/3 - корень из 3=0

Ответы

Автор ответа: oganesbagoyan

2cos(x/3) - √3 = 0 ;
cos(x/3) = √3/2 ;
x/3 = (+/-) π/6 +2π*k , k ∈Z ;
x = (+/-)π/2 +6π*k , k ∈Z .

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