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larik23
@larik23
July 2022
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В треугольнике ABC угол с равен 90, AC=8,cosA=4/9. найдите AB. С РЕШЕНИЕМ!)
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crescendo1
CosA=AC/AB (отношение прилежащего катета к гипотенузе)
AC/AB=8/AB
8/AB=4/9
решаем пропорцию
4AB=8*9
AB=18
Ответ:18
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Answers & Comments
AC/AB=8/AB
8/AB=4/9
решаем пропорцию
4AB=8*9
AB=18
Ответ:18