s'il vous plaît maintenant ​

Réponse:

1)

A= 3⁵⁺³ = 3⁸

B = (9×(-7))⁻⁶ = (-63)⁻⁶ = 63⁻⁶

C = (-2)⁻⁴/2⁵ = 2⁻⁴/2⁵ = 2⁻⁴⁻⁵ = 2⁻⁹

2)

5,484.10⁻⁴

3)

A = 1,24.10¹⁹ + 0,89.10¹⁹

A = 2,13.10¹⁹