Chapter 3: Sequences and Series Flashcards
1
Q
Formula for sum of geometric sequence to infinity
A
a/1-r
2
Q
Formula for sum of any geometric sequence
A
a(1-r^n)/1-r
3
Q
Formula for geometric sequence
A
ar^n-1
4
Q
What does “a” represent in a geometric sequence?
A
First term in a geometric sequence
5
Q
What does “r” represent in a geometric and arithmetic sequence?
A
Common ratio in a geometric sequence
6
Q
What does “n” represent in a geometric and arithmetic sequence?
A
Term number in a geometric sequence
7
Q
Formula for arithmetic sequence
A
a + (n-1)d
8
Q
Formula for sum of any arithmetic sequence
A
n/2 (2a + (n-1) d)
9
Q
What does “d” represent in an arithmetic sequence?
A
Common difference
