Question

Calcule a soma dos 50 termos da PA S=(6, 13, 20,...).

Answer 1

Razão = 7

S = ( 6, 13, 20, 27, 34, 41, 48, 55, 62, 69, 76, 83, 90, 97, 104, 111, 118, 125, 132, 139, 146, 153, 160, 167, 174, 181, 188, 195, 202, 209, 216, 223, 230, 237, 244, 251, 258, 265, 172, 279, 286, 293, 300, 307, 314, 321, 328, 335, 342, 349).


Soma= 8.675