помогите пожалуста 1)cos a =15/39 2)sin a =30/34 3) tg a =x/40. Created by pylypvasylyna. geometriya-ru

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pylypvasylyna @pylypvasylyna

July 2022 1 7 Report

помогите пожалуста 1)cos a =15/39 2)sin a =30/34 3) tg a =x/40

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Tanda80

Verified answer

1) tg(a) =sin(a) /cos(a), т. е.
tg(a) =(30/34):(15/39)=(30/34)*(39/15)=проводим сокращение=39/17;
3) По условию tg(a) =x/40, а значит получаем, что
х/40=39/17.
х=(39*40)/17.

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pylypvasylyna August 2022 | 0 Ответы

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