Maths › Equations › Further proof
Further proof formulae
The one result the further proof notes display, with the conditions it needs to be true and a link to the lesson that states it. It is a working line the notes build in front of you rather than a standard result to memorise.
Further Maths · 1 lesson with formulae.
A result the Edexcel formulae booklet prints is marked as such; one it does not print is marked to learn; and a result badged derived in the lesson is a working line the notes build in front of you rather than a standard result to memorise.
Proof by induction: sums and series
NOT IN THE BOOKLET: DERIVED IN THE LESSONConditionsBoth parts are needed: the base case proved outright, and the k + 1 case derived from the assumption at k rather than asserted.
Every formula in the library is indexed by unit on the equation index, and the further proof notes are where this result is derived and used.