Réponse :
Explications étape par étape
13/ a 2⁻¹⁴ = 1 / 2 ¹⁴ ≅ 6,103 . 10⁻⁵
b/ 17-³ ≅ 2,035.10⁻⁴
c/ 8⁻⁷ ≅ 4,768. 10⁻⁷
d/ 3⁻¹⁰ ≅ 1,6935.10⁻⁵
e/( -11)⁻⁴ ≅ 6,83.10⁻⁵
f/ (-1,2)⁻⁶ ≅ 0,3348
g/ -4⁻¹⁰ ≅ -9,536.10⁻⁷
h/ -0,6⁻⁷ ≅ -35,72245
21/ a/ 3⁴ * 3² = 3⁶
b/ 4³ * 4⁻⁵ = 4 ³⁻⁵ = 4⁻² = 1 / 4₂
c/ ( -5 )⁴ * ( -5 )⁻³ = (-5) ⁴⁻³ = ( - 5 ) ¹ = -5
d/ 2⁴ / 2⁵ = 2⁴⁻⁵ = 2⁻¹ = 1/2
e/ 3² * 3⁻³ = 3²⁻³ = 3⁻¹ = 1/3
f/ (7²)³ = 7⁶
g/ (4⁻²)³ = 4⁻⁶ = 1 / 4⁶
h/ ( (-1)²) ⁻³ = (1) ⁻³ = 1/ 1³ = 1
i/ 7⁵ * 2⁵ = 14⁵
j/ 3⁻⁴ * 5⁻⁴ = 15⁻⁴ = 1 / 15⁴
k/ 8³ * 4³ = 32³ = (2⁵)³ = 2¹⁵
