Mathematics 0580 · IGCSE · Sequences

Sequences — practice question

Find the $n$th term for each sequence given below.

(a)[2]

Find the $n$th term of the sequence $-1, 0, 7, 26, 63, ...$

(b)[2]

Find the $n$th term of the sequence $24, 12, 6, 3, 1.5, ...$

Worked solution & mark scheme

This 4-mark question has a full step-by-step worked solution and mark scheme. One marking point: “Correct general term $(n-1)^3-1$” …