Question

Which answer represents the series in sigma notation? −5+(−1)+3+7+11

Answer 1

In sigma notation, the series may be represented as,

`\sum_(x = 0)^(4)(-5 + 4x)`

It is an arithmetic progression with

1st term = -5

common difference = 4

no, of terms = 5

Explanation:

The finite series is given by,

-5 + (-1) + 3 + 7 + 11

In sigma notation, the series may be represented as,

`\sum_(x = 0)^(4)(-5 + 4x)`

It is an arithmetic progression with

1st term = -5

common difference = 4

no, of terms = 5