Series and Sequence

Question 1

Explicit Formula (Arithmetic)

Answer 1

An= a1 + (n - 1)d

Question 2

Sum of Finite Arithmetic Series

Answer 2

Sn= n/2(a1+ an)

Question 3

Explicit Formula (Geometric)

Answer 3

An= a1(r)^n-1

Question 4

Infinite Geometric Series

Answer 4

S= a1/1 - r

Question 5

Sum of a Finite Geometric Series

Answer 5

Sn= a1(1 - r^n)/1 - r