计算(1000081)14−[3×(78)0]−1•[81−0.25+(338)−13]−12的值．

Question

计算((10000)/(81))(1)/(4)−[3×((7)/(8))0]−1•[81−0.25+(3(3)/(8))−(1)/(3)]−(1)/(2)的值．

Answer 1

原式=((10)/(3))4×(1)/(4)−3−1•[34×(−(1)/(4))+((3)/(2))3×(−(1)/(3))]−(1)/(2)=(10)/(3)−(1)/(3)•((1)/(3)+(2)/(3))−(1)/(2)=(10)/(3)−(1)/(3)＝(9)/(3)＝3．