Предмет: Математика, автор: pj923028

cos 73ºcos 38° + sin 73° sin 38° : 2cos35

Ответы

Автор ответа: olgasukhova200754

1

Ответ:

Cos 73°cos13°+sin 73° sin 13° = cos(73° - 13°) = cos60° = 1/2

Пошаговое объяснение:

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