Card 1 of 24
How does a sequence differ from a series?
A
- A sequence is an ordered list of terms.
- A series is the sum of those terms.
B
An infinite geometric series converges when ∣r∣<1\boxed{|r|<1}∣r∣<1, in which case S∞=a1−rS_\infty=\frac{a}{1-r}S∞=1−ra.
C
Sn−rSn=a−arnS_n-rS_n=a-ar^nSn−rSn=a−arn
D
u8=5(37)=10935u_8=5(3^7)=10935u8=5(37)=10935
Card 1 of 24
1.6.14 Geometric sequences and series (A-level only) Flashcards
24 flashcards on OCR (MEI) A Level Maths 1.6.14 Geometric sequences and series (A-level only): the key formulae, methods and definitions you need to recall for Component 01, Component 02 and Component 03.