Chapter 6 Sequence and Series Flashcards
1
Q
Formula for Un for arithmetic progression
A
Un = a + (n-1)d
2
Q
Formula for Sn for arithmetic progression
A
Sn = n/2 (2a+(n-1)d)
3
Q
Formula for Un for geometric progression
A
Un = ar^(n-1)
4
Q
Formula for Sn for geometric progression
A
Sn = a(r^n -1) / (r-1)
