P2.4.1 - Sequences,

Sequences, including those given by a formula for the nth term and those generated by a simple relation of the form x = f(x). n + 1 n.

Use sequences, to connect the rule to the data and decision in the question.

This matters because sequences, determines what can be inferred or chosen; begin with the stated conditions and keep the conclusion tied to the evidence.

Example: apply sequences, to one small, clearly defined case, show the key step or comparison, and explain the result in words.

Boundary: Sequences, is not a universal recommendation. Check the syllabus scope, assumptions, units and the limits of the evidence before generalising.