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GodenPower
@GodenPower
August 2022
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Найдите а) синус и тангенс острого угла, косинус которого равен 12/13
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SVETA1951TIT
Verified answer
Файл...........................
57 votes
Thanks 127
sedinalana
а вдру 4 четверть?
sedinalana
а нет ,он острый
sedinalana
Verified answer
Cosa=12/13
sina=√(1-cos²a)=√(1-144/169)=√(25/169)=5/13
tga=sina/cosa=5/13:12/13=5/13*13/12=12/13
23 votes
Thanks 47
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Verified answer
Файл...........................Verified answer
Cosa=12/13sina=√(1-cos²a)=√(1-144/169)=√(25/169)=5/13
tga=sina/cosa=5/13:12/13=5/13*13/12=12/13