Mathematics 0580 · IGCSE · Sequences

Sequences — practice question

Find the $n$th term for every sequence listed.

(a)[1]

Find the $n$th term of the sequence $\frac12, \frac14, \frac16, \frac18, \frac1{10}, \dots$

(b)[2]

Find the $n$th term of the sequence $1, 5, 25, 125, 625, \dots$

Worked solution & mark scheme

This 3-mark question has a full step-by-step worked solution and mark scheme. One marking point: “The term is $\frac{1}{2n}$.” …