series and sequences Flashcards
1
Q
a[1]
A
a
2
Q
number of terms
A
n
3
Q
a[n]
A
l (AKA L)
4
Q
common difference
A
d
5
Q
common ratio
A
r
6
Q
arthithmetic formula
A
a[k] = a + (k-1)d
7
Q
l (el) for arithmetic sequence
A
a + (n-1)d
8
Q
geometric formula
A
a[k] = ar^(k-1)
9
Q
the sum of all terms in a sequence
A
s
10
Q
the sum of some to all terms in a sequence
A
s[n]
11
Q
A
