In an arithmetic sequence, consecutive terms have a [ ], represented by ddd.
The nth term of an arithmetic sequence is un=a+(n−1)d\boxed{u_n=a+(n-1)d}un=a+(n−1)d.
n=16n=16n=16; reject the negative root −352-\frac{35}{2}−235.
In an arithmetic sequence, consecutive terms have a constant difference, represented by ddd.
SnS_nSn
1.6.13 Standard formulae for arithmetic series (A-level only) Flashcards
Flashcards for OCR (MEI) A Level Maths 1.6.13 Standard formulae for arithmetic series (A-level only), covering the key formulae, methods and definitions you need to recall for Component 01, Component 02 and Component 03. 23 cards, matched to the OCR (MEI) A Level Maths (H640) specification. Recall questions account for roughly 50% of marks at A Level Maths, so these target the marks you can secure before the paper starts.