Card 1 of 22
An ordered list of terms is a [ ]; adding its terms produces a series.
A
d=−4d=-4d=−4
B
For first term aaa and common difference ddd, un=a+(n−1)du_n=a+(n-1)dun=a+(n−1)d. The last included term is l=a+(n−1)d\boxed{l=a+(n-1)d}l=a+(n−1)d.
C
An ordered list of terms is a sequence; adding its terms produces a series.
D
Term nnn is reached after n−1n-1n−1 jumps.
Card 1 of 22
1.4.8 Arithmetic sequences and series (A-level only) Flashcards
22 flashcards on OCR A Level Maths 1.4.8 Arithmetic sequences and series (A-level only): the key formulae, methods and definitions you need to recall for Paper 1, Paper 2 and Paper 3.