What is the explicite to 19,13,7,1,...
19, 13, 7, 1,… - 6 - 6 - 6Something that is explicit to the problem is tat it has a common difference of -6.a(n) = a₁ + d(n - 1)a(n) = 19 - 6(n - 1)a(n) = 19 - 6(n) + 6(1)a(n) = -6n + 19 + 6a(n) = -6n + 25