Sequences Flashcards
1
Q
Finding the nth term, first term and n of an arithmetic sequence
A
2
Q
Finding the nth term of a geometric sequence
A
3
Q
Sum to the nth term formula for arithmetic sequence
A
4
Q
Common ratio formula
A
Either a(n+1) / a(n) OR
5
Q
Finding the sum to infinity of a geometric sequence
A
6
Q
Convergency of geometric sequence
A
A convergent geometric series is a geometric series that approaches a set limit. This means for the sum to infinity to exist, -1<r<1
7
Q
Sigma notation
A
Remember: for arithmetic series in the expression (An +/- B), A is always the common difference
