August 2022 1 3 Report

Решаю

cos2xsinx-cos2x=0

cos2x(sinx-1)=0

cos2x=0 или sinx=0

Задание: указать корень уравнения из промежутка (90градусов;180 градусов)

Застрял, помогите, срочно!!!

 

 

 

 

 

 

 

 

 

 

 

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