Question

GIÚP MÌNH VỚI TỐ MÌNH PHẢI NỘP RỒI

Answer 1

h: \(\left(1+\dfrac{1}{3}-\dfrac{1}{4}\right)\cdot\left(\dfrac{4}{5}-\dfrac{3}{4}\right)^2\)

\(=\dfrac{12+4-3}{12}\cdot\left(\dfrac{16-15}{20}\right)^2\)

\(=\dfrac{5}{4}\cdot\dfrac{1}{20^2}=\dfrac{5}{1600}=\dfrac{1}{320}\)