E
Editor
Sep 18, 2022
What is the average of 3^10, 3^20 and 3^30?
Difficulty: Easy
A:
3^59
B:
3^9+3^{19}+3^{29}
C:
3^57
D:
3^{11}+3^{21}+3^{31}
ID: 63273db5ca83163ac3a0a009