Question

Answer 1

2:

\(A=\dfrac{-3}{2}\cdot\dfrac{m}{n}+\dfrac{-3}{8}\cdot\dfrac{3}{2}=\dfrac{-3}{2}\cdot\dfrac{m}{n}-\dfrac{9}{16}\)

a: Khi m/n=4/5 thì A=-3/2*4/5-9/16=-141/80

b: Khi m/n=-3/8 thì A=-3/2(-3/8)-9/16=0

c: Khi m/n=0/2021 thì A=-3/2*0-9/16=-9/16

d: Khi m/n=5/2 thì \(A=\dfrac{-15}{4}-\dfrac{9}{16}=\dfrac{-69}{16}\)