1) (√3)² = 3
2) (√11)² = 11
5) 5 - √16 = 5 - 4 = 1
6) √49 + 3 = 7 + 3 = 10
7) (√10 - 3)(√10 + 3) = (√10)² - 3² = 10 - 9 = 1
8) (√19 - 4)(√19 + 4) = (√19)² - 4² = 19 - 16 = 3
Ответ : иррациональные : √2 , 5√6
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1) (√3)² = 3
2) (√11)² = 11
5) 5 - √16 = 5 - 4 = 1
6) √49 + 3 = 7 + 3 = 10
7) (√10 - 3)(√10 + 3) = (√10)² - 3² = 10 - 9 = 1
8) (√19 - 4)(√19 + 4) = (√19)² - 4² = 19 - 16 = 3
Ответ : иррациональные : √2 , 5√6