Вычислите......................
A = 4"√9·2·8·9 = 4"√[(3^4)·(2^4)] = 3·2 = 6 B = b^[(5/6)·3] · b^(3/4) = b^(5/2 + 3/4) = b^(13/4) = 4"√b^13 = b³·4"√b