Mathematics 0580 · IGCSE · Sequences

Sequences — practice question

The sequence is $a, 13, 9, 3, -5, -15, b, \ldots$.
(main)[2]

Find both the value of $a$ and the value of $b$.

Worked solution & mark scheme

This 2-mark question has a full step-by-step worked solution and mark scheme. One marking point: “Correctly determines $a = 15$.” …

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