Предмет: Математика, автор: fisj1Stas

У простите выражения 1-cos2a/1-sin2a

Ответы

Автор ответа: Сергей1257

1-cos2a/1-sin2a=1-cos в квадрате х+sin в квадрате х/ 1- 2sinxcosx=0

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