calculati folosind proprietatea (a^m)^n=a^m-n

Răspuns:
3²⁰:3¹⁹=3
5⁵⁶:5⁵⁴=25
7⁴⁹:7⁴²=7⁷
13¹⁰⁴:13¹⁰⁴=1
7¹⁶⁹:7¹⁶⁸=7
2⁴⁹:2⁴⁸=2
3⁶⁴:3⁶⁴=1