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super1997
@super1997
July 2022
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В треугльнике АВС, угол С равен 90 градусов, cosA=2
√6/5. Найдите cosB
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volodyk
Verified answer
CosA =sinB, cosB=корень(1-sinB в квадрате)=корень(1-(24/25))=корень(1/25)=1/5
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Answers & Comments
Verified answer
CosA =sinB, cosB=корень(1-sinB в квадрате)=корень(1-(24/25))=корень(1/25)=1/5