bВерных ответов 2:CtgBTgaCtgaTgB...

albinakimm66 @albinakimm66

October 2021 1 15 Report

Используя рисунок, определи, чему равно отношение сторон a/b
Верных ответов 2:
CtgB
Tga
Ctga
TgB

Answers & Comments

MatrixOfsciences

Verified answer

Ответ:

$ctg \: \beta = tg \: \alpha = \frac{a}{b}$

Объяснение:

$ctg \: \beta = \frac{BC}{AC} = \frac{a}{b} \\ tg \: \alpha = \frac{BC}{AC} = \frac{a}{b} \\ ctg \: \alpha = \frac{AC}{BC} = \frac{b}{a} \\ tg \: \beta = \frac{AC}{BC} = \frac{b}{a}$

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