Question

(n/n^2)^1/3怎么算

Answer 1

次方 = b;两边取 n次方，有：a^m = b^n；a^m/n= a^m(1/n) = ( bn)^(1/n) = b = am开n 次方。即 a^m/n = ( a^m) 开n 次方。