Предмет: Математика, автор: naranaAA

СРОЧНО, ПОЖАЛУЙСТА. в прямоугольном треугольнике ABC угол C прямой CD высота угол А=a угол AB=h. Найдите CD

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Ответы

Автор ответа: kashrimma04

1

Ответ:

Первый : h /(sin a * cos a)

Пошаговое объяснение:

Sin a = h/ СА т.е СА= h/ sin a

Cos a = CA/ BA т.е ВА=СА/cos a = h/sin ÷cos a= h / (sin a *cos a)

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