Sagot :
bonjour
Pour comprendre il suffit d'étudier le cours
7 ⁴ x 7 ³ x 7 ⁻¹ = 7 ⁶
3 ⁻² x 3 ⁸ x 3 ⁻¹⁰ = 3 ⁻⁴
6 ⁷ x 6 ² / 6 ⁵ = 6 ⁹ / 6 ⁵ = 6 ⁴
11 ² / 11 ⁻¹ x 11 ³ = 11 ² / 11 ² = 11 ⁰ = 1
5 ⁶ / 5² = 5 ⁴
3 ² x 4 ² = 12 ²
*
25 x 0. 2² = 5 ² x 0.2 ² = 1 ² = 1
( 3 ²)⁵ / 3 ⁶ = 3 ¹⁰/3 ⁶ = 3 ⁴