The Maths TailorPast-paper stats

TMUACombinatorics & BinomialRank #58·Type MC

Treat a three-term bracket as a binomial in disguise, then keep only terms up to the power you need

At a glance

3

Occurrences

questions

3

Years

3

Papers

3

Worked

100%

When this method shows up

Years in which at least one question on this paper triggers the method.

2016 2020 Specimen

Other top methods in Combinatorics & Binomial

Target one coefficient with the general term, never expand the whole thing×5
When two coefficients are proportional, divide the equations so the binomial coefficients cancel×4
The coefficient in a product or a sum of expansions is the sum of every contributing piece×3

See the worked examples

Open this method in the 3-panel methods app to see the demonstration, every linked past-paper question, and how to attack it.

Open method in the TMUA app

Try a method on a real paper

Open the TMUA methods app to see worked examples, linked questions and the 3-panel revision view.

Open TMUA methods