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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 |
7 13 1 5 |
13 |
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. |
