bjr
inverse d'un nbre n => 1/n
=> fonction inverse : f(x) = 1/x
si x = 3/4 => f(3/4) = 1 / (3/4) = 4/3
si x = -5/8 => f(-5/8) = vous avez compris le principe
si x = -10⁶ => f(-10⁶) = 1 / (-10⁶) = -10⁻⁶
et
si x = -10⁻⁴ => f(-10⁻⁴) = 1 / (-10⁻⁴) = -10⁴
