Question

A function f(x) is defined for all natural numbers x, as f(x) = 2f(x - 1) + 5.
If f(1) = 1, then what is the value of f(40) - F(39) ?
A) 6 x 241
B) 6 x 240
C) 6 x 239
D) 6 x 238

Answer 1

Answer:

a option is the answer for this question