Предмет: Алгебра, автор: kkak58

известно что
tg²a+ctg²a+1/sin²a+1/cos²a=7
найти sin²a‐sin⁴a
помогите пожалуйста, даю 100

Ответы

Автор ответа: polarkat

Решено всё правильно!

При любых $k$ ответ будет $\frac{2}{9}$

Приложения:

dcb670610832efca8a7ab513eedbb494.pdf

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известно что tg²a+ctg²a+1/sin²a+1/cos²a=7 найти sin²a‐sin⁴a помогите пожалуйста, даю 100

Ответы

известно что
tg²a+ctg²a+1/sin²a+1/cos²a=7
найти sin²a‐sin⁴a
помогите пожалуйста, даю 100