Question

b3=4/7 b6=196 найти q

Answer 1

b₃=b₁·gⁿ⁻¹
b₃=b₁·g²
b₆=b₁·g⁵
196=b₁·g⁵
4|7= b₁·g²;    b₁=4/7  : g²;    b₁= 4/ 7g²;
196=4/ 7g² · g⁵;
196 ·7= 4g³;
4g³= 1372; 
g³ = 343;
g³ = 7³;  g = 7.