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xdfr84650
@xdfr84650
August 2022
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dl cos Go to 45 asinset 8 sinto cosoort
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zmeura1204
Ответ:
∠FCO=60°
∠OCF=30°
Решение:
sin∠FCO=FO/FC.
sin∠FCO=2√3/4=√3/2
arcsin√3/2=60°
∠FCO=60°
∠OCF=90°-60°=30°
1 votes
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xdfr84650
спасибо огромное
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Answers & Comments
∠FCO=60°
∠OCF=30°
Решение:
sin∠FCO=FO/FC.
sin∠FCO=2√3/4=√3/2
arcsin√3/2=60°
∠FCO=60°
∠OCF=90°-60°=30°