16. (√25a * √4b³) / √ab, при a = 7 и b = 11

Решение: (√25a * √4b³) / √ab = (5√a * 2√(b³) )/ √ab = (10√(a*b³)) / √ab = (10√(a*b*b²)) /√ab= (10 √a b√b)/ √ab = (10b√a√b) / (√a√b) = 10b. При a = 7 и b = 11: 10*11 = 110