Предмет: Математика, автор: Дашка005254342

Пожалуйста, помогите решить подробно,я просто совсем не понимаю эти тожества
1+tg²a+1/Sin²a=1/Sin²aCos²a

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Автор ответа: amankulovakunduz0

0

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вот в интернете нашла только это

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Автор ответа: kyrbatoba

1

Ответ:в прикреплённом файле

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