Question

son numéros complejos.​

Answer 1

$Z = ( \frac{1 + i}{1 - \frac{1 + i}{1 - \frac{1 + i}{1 - i} } } ) {}^{2} \\ Z =( \frac{1 + i}{1 - \frac{1 + i}{1 - i} } ) {}^{2} \\ Z =( \frac{1 + i}{1 - i} ) {}^{2} \\ Z = {i}^{2}$