Sequences And Series Flashcards
1
Q
What is the formula for the nth term of an arithmetic sequence?
A
Un = a + (n-1)d
Un = nth term
a = first term
d = common difference
2
Q
What is the formula for the SUM TO INFINITY of a geometric sequence?
A
a / 1-r
3
Q
How do you know if a geometric sequence is converging?
A
The ratio between the terms is less than 1
