Question

2(1/2-2/3)^3 

Answer 1

\(2\left(\frac{1}{2}-\frac{2}{3}\right)^3=2\left(\frac{3}{6}-\frac{4}{6}\right)^3=2.\left(-\frac{1}{6}\right)^3=2.-\frac{1}{216}=-\frac{1}{108}\)

Answer 2

Ta có: \(2.\left(\frac{1}{2}-\frac{2}{3}\right)^3=2.\left(\frac{3}{6}-\frac{4}{6}\right)^3=2.\left(-\frac{1}{6}\right)^3=2.\left(-\frac{1}{216}\right)=-\frac{1}{108}\)

Chuk bn hk tốt !