Card 1 of 20
How do you test whether a sequence is geometric?
A
u8=5(3)7=<strong>10935</strong>u_8=5(3)^7=<strong>10935</strong>u8=5(3)7=<strong>10935</strong>
B
S∞=<strong>272</strong>S_\infty=<strong>\frac{27}{2}</strong>S∞=<strong>227</strong>
C
Check that consecutive-term ratios are constant.
D
10+2(61−0.6)=<strong>40 m</strong>10+2\left(\frac{6}{1-0.6}\right)=<strong>40\text{ m}</strong>10+2(1−0.66)=<strong>40 m</strong>
Card 1 of 20
1.7.5 Geometric sequences and series (A-level only) Flashcards
20 flashcards on AQA A Level Maths 1.7.5 Geometric sequences and series (A-level only): the key formulae, methods and definitions you need to recall for Paper 1, Paper 2 and Paper 3.