Question: Consider the sequence 15, 11, 7, 3, ..... (a) Write a recursive formula of the sequence. (1 Mark) (1 Mark) (b) Hence find the non-recursive

Consider the sequence 15, 11, 7, 3, ..... (a) Write a recursive formula of the sequence. (1 Mark) (1 Mark) (b) Hence find the non-recursive formula (c) Prove the non-recursive formula by using the recursive formula and induction, (3 Marks) E E % US X2 x E = >

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