Bonjour,
Calculer:
E= 2⁽⁻⁴⁺⁹⁾ / 5⁽⁵⁻²⁾= 2⁵/ 2⁻²= 2⁵⁺²= 2⁷
F= -3(-3³) / ((-3)⁴)² on a inversé
= (3x3³) / ((-3)⁴)² - x - = +
= 3⁽¹⁺³⁾ / ((-3)⁴)²
= 3⁴ / ((-3)⁴)²
= 3⁴ / 81² (-3)(-3)(-3)(-3)= +81, idem pour 3⁴= 81
= 81/81²= 1/81 on a simplifié.
G= [ 7⁽¹³⁻⁹ ⁾/ 7 ⁽⁻¹⁴⁻⁸⁾ ]²= [ 7⁴ / 7⁻²² ]² = [ 7⁽⁴⁺²²⁾ ]²= (7 ²⁶)²= 7⁽²⁶ˣ²⁾= 7⁵²
