Предмет: Алгебра, автор: kremlebot10

Значение какого выражения является иррациональным числом?(задние 1)

Приложения:

Ответы

Автор ответа: mmb1
3

1.

(√18 + √32)/√8 = (√2√9 + √2√16)/√2√4 = (3+4)/2 = 7/2 рациональное

2.

1/(√3 - √2) = (√3 + √2)/(√3 - √2)(√3 + √2) = √3 + √2 Иррациональное

3.

(2/3 * √5)² = 4/9 * 5 = 20/9 Рациональное

4.

(√3 + √2)² = 3 + 2*√2√3 + 2 = 5 + 2√6 Иррациональное

Ответ 2 и 4

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