SEQUENCES Flashcards
0
Q
ARITHMETIC EXPLICIT FORMULA
A
An=a1+(n-1)d
1
Q
ARITHMETIC RECURSIVE FORMULA
A
An=an-1+d
2
Q
GEOMETRIC RECURSIVE FORMULA
A
An=an-1*r
3
Q
GEOMETRIC EXPLICIT FORMULA
A
An=a1*r^n-1
4
Q
SUM OF A FINITE ARITHMETIC SEQUENCE
A
n(a1+an/2)
5
Q
SUM OF A FINITE GEOMETRIC SEQUENCE
A
a1(1-r^n)/1-r
6
Q
SUM OF AN INFINITE GEOMETRIC SERIES IFF IT CONVERGES
A
S=a1/1-r