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a) 19 a, unde a = 3". 5n+2+3n+2.5n-3n+1.5n+1;
b) 391a, unde a = 5n . 7+2 + 5n+2.7n_5n+1.7m+1;
c) 13|a, unde a = 3n+3. 22n + 3n+1. 22n+4 - 3n+2. 22n+2;
d) 13|a, unde a = 5". 4n+3 +5+1. 4n+2 + 5n+1. 4n5n+2. 4n+1. BE
e) 29 | a, unde a=23n+1.5n+3 + 8n+2. 5n+2-23n+2. 5n+1.72.


A 19 A Unde A 3 5n23n25n3n15n1 B 391a Unde A 5n 72 5n27n5n17m1 C 13a Unde A 3n3 22n 3n1 22n4 3n2 22n2 D 13a Unde A 5 4n3 51 4n2 5n1 4n5n2 4n1 BE E 29 A Unde A23 class=