Question

Найти сумму бесконечной геометрической прогрессии: -49; 7 -1,​

Answer 1

S = b1 / (1 - q) = 49/ (1 - 1/7) = 49 /(7/7 - 1/7) = 49/ (6/7) = 343/6 

b1 = 49

b2 = 7

q = b2/b1 = 1/7