Verified answer

Réponse:

A=13^7

B=1

C=1,3

Explications étape par étape:

A=13^4x13^5/13^2

=13^4+5/13^2

=13^9/13^2

=13^9-2

=13^7

B=6^-5/6x(6^-2)^3

=6^-5/6x6^-6

=6^-5/6^1-6

=6^-5/6^-5

=1

C=1,3x1,3^10/(1,3^2x1,3^3)^2

=1,3^11/(1,3^5)^2

=1,3^11/1,3^10

=1,3^11-10

=1,3