Arithmetic & Geometric Sequences and Series
Definitions:
An Arithmetic Sequence is a list of terms each one differing from the previous by the same constant called the common difference. 
Example:
10,7,4,1,-2 
the common difference here is d=-3.​

Definitions:
An Arithmetic Sequence is a list of terms each one differing from the previous by the same constant called the common difference. 
Example:
10,7,4,1,-2 
the common difference here is d=-3.

An Arithmetic Series can be defined as the sum of an arithmetic sequence. 
Example: 
10+7+4+1+(-2)

Note: In an arithmetic sequence each term is seperated by commas. Where as in the case of an arithmetic series, each term is seperated from the next by pluses. A sequence is a list of numbers, and a series is the sum of nmbers.

Arithmetic Series Formula
The sum of the first n terms of an arithmetic series where a1 is the first term, and an is the nth term is given by the formula: (n/2)(a1+an)

Formulas arithmetic and geometric sequences series nth term sum finite infinite common difference ratio infinity convergence divergence test solve
sum of n terms of a finite arithmetic series formula sn = n/2 a1+a2 first term nth sum number
An Arithmetic Series can be defined as the sum of an arithmetic sequence. 
Example: 
10+7+4+1+(-2)

Note: In an arithmetic sequence each term is seperated by commas. Where as in the case of an arithmetic series, each term is seperated from the next by pluses. A sequence is a list of numbers, and a series is the sum of nmbers.

Arithmetic Series Formula
The sum of the first n terms of an arithmetic series where a1 is the first term, and an is the nth term is given by the formula: (n/2)(a1+an)

PRACTICE TEST
SOLUTIONS TO  THE PRACTICE TEST
  1. Managing Director
  2. Managing Director
  3. Managing Director
  4. Managing Director
  5. Managing Director
  6. Managing Director
  7. Managing Director
  8. Managing Director