Предмет: Геометрия, автор: LonelyPussycat

помогите пожалуйста (желательно с рисунком)

Приложения:

Simba2017: 1+tg^2x=1/sin^2x; 1+1/4=1/sin^2x; sin^2x=4/5; sinx=2/корень из 5

Simba2017: я ошиблась с формулой, извините

Ответы

Автор ответа: Miroslava227

1

Ответ:

решение на фотографии.

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