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Pavel155487
@Pavel155487
July 2022
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в равнобедренном треугольнике АВС с основанием АС= 3 корень из2, cos С =1/3 найдите высоту СК
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anastasiyasotn
Скорей всего Вам нужно найти высоту не CK, а BKНайдем BK:AK+KC=AC
2KC=AC ->KC=3√2/2 = 3/√2
cosC = KC/BC ->BC=KC/cosC ->BC=9/√2
BK^2 + KC^2 = BC^2BK^2 = BC^2 - KC^2BK^2 = 81/2 - 9/2 = 72/2 = 36BK=6
Ответ: BK = 6
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Pavel155487
Нужно найти СК, так в условии задачи
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