Question

a,(\(\dfrac{2}{5}\)-\(\dfrac{1}{3}\)) mũ 2

b.(1 và 1/2 - 1,25) mũ 3

c.(1/2+1/3) mũ 2 : ( 1 và 1/2) mũ 2

d.2:(1/2-2/3) mũ 3

Answer 1

a: \(=\left(\dfrac{6-5}{15}\right)^2=\dfrac{1}{225}\)

b: \(=\left(\dfrac{3}{2}-\dfrac{5}{4}\right)^3=\left(\dfrac{1}{4}\right)^3=\dfrac{1}{64}\)

c: \(=\left(\dfrac{5}{6}\right)^2:\left(\dfrac{3}{2}\right)^2=\left(\dfrac{5}{6}:\dfrac{3}{2}\right)^2=\left(\dfrac{5}{9}\right)^2=\dfrac{25}{81}\)