Réponses

2014-09-16T10:28:17+02:00
D = 3⁴ X 3⁻⁷ = 3 ⁴⁻⁷ = 3 ⁻³
E = 5⁸ X 5 ¹² X 5¹⁹ = 5 ⁸⁺¹²⁺¹⁹ = 5 ³⁹
F= 1/7⁻⁹
G = 5⁶/5⁻¹² = 5⁶⁺¹²= 5 ¹⁸
H= (-9) X (-9)⁶ = +9⁶
I = 2⁵ X 2⁻⁸ X 2⁶/2⁻⁵ = 2 ⁵⁻⁸ = 2⁻³ X1⁶⁺⁵ 
                                              2⁻³ X 1¹¹
2014-09-16T11:37:52+02:00

Bonjour

Calculer les expressions suivantes justifiés

D = 3⁴ X 3⁻⁷ = 3 ⁴⁻⁷ = 3 ⁻³


E = 5⁸ X 5 ¹² X 5¹⁹ = 5 ⁸⁺¹²⁺¹⁹ = 5 ³⁹


F = 1/7
⁻⁹     =      7⁹


G = 5⁶/5⁻¹²   =    5⁶⁺¹²= 5 ¹⁸


H = (-9) x (-9)⁶      =     (-9)⁷


I = 2⁵ x 2⁻⁸ x  2⁶/2⁻⁵
 


I    =   2 ⁵⁻⁸  x   2⁶⁺⁵


I  =  2
⁻³  x   2¹¹


I = 2⁻³⁺¹¹  

I = 2⁸