If f is a function such that f(0) = 2, f(1) = 3 and f(x + 2) = 2 f(x) – f(x + 1) for every real x, then f(5) is
Answer & explanation
Correct answer: option 2
Put x = 0
f(2) = 2 f(0) – f(1) = 1
f(3) = 5, f(4) = –3, f(5) = 13
Hence (2) is the correct answer.