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valeriapivovarova809
@valeriapivovarova809
January 2024
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який вигляд має теорема косинусів? А) с²=а²+b²-2ab cosC; В)c²=a²-b²+2ab cos С; Б) c²=a²-b²-2ab cos C; Г)с²=a²+b²+2ab cos C.
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2525sveta
Объяснение:
c²=a²+b²-2ab cos C
ответ а
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Answers & Comments
Объяснение:
c²=a²+b²-2ab cos C
ответ а