Предмет: Алгебра, автор: Apple008

между какими целыми числами расположен корень уравнения?
3^x=21,8

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Автор ответа: vahe2907

1

$3^x = 21.8\\3^2 = 9\\3^3 = 27 =>\\3^2 < 3^x < 3^3\\2 < x < 3$

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