3.3: Sequences and Series - Geometric Sequences Flashcards
1
Q
How can one identify a geometric sequence?
A
it has a common ratio between consecutive terms
2
Q
How do you get from one term to the next in a geometric sequence?
A
you multiply by the common ratio
3
Q
What is an alternating sequence?
A
a sequence in which terms are alternately positive and negative
4
Q
What is the formula for the nth term of a geometric sequence?
A
ar^n-1
5
Q
What does a represent?
A
the first term
6
Q
What does r represent?
A
the common ratio
7
Q
How can the common ratio be calculated in a geometric sequence?
A
u2/u1 or u3/u2
