👤

(11+11×2+11×2la puterea2+....+11×2la puterea9):1023

Răspuns :

11(1+2+2²+....+2^9): (11*93)
 
(1+2+...+2^9):93
[(2^10-1)/(2-1)] :93
(1024-1):93
 1023:93=11, cerinta