Question

sabendo que A=(-2+4/5)^-2,determine o valor de A

Answer 1

A = (-2 + $\frac{4}{5}$)^-2

A = ($\frac{-10}{5}$ + $\frac{4}{5}$)^-2

A = ($\frac{-6}{5}$)^-2

A = ($\frac{-5}{6}$^2

A = $\frac{25}{36}$

A ≈ 0,694