IXL - Introduction to partial sums (Algebra 2 practice)

Find the first three partial sums of the series.

Write your answers as integers or fractions in simplest form.

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Find the first three partial sums of the series.

Write your answers as integers or fractions in simplest form.

A sequence is an ordered list of numbers. This list can have a finite number of terms or infinitely many terms.

A series is the sum of a sequence of numbers.

The

partial sum

(

)

of a series is the sum of its first

terms.

Look at the series.

The first partial sum,

is just the first term.

The second partial sum,

is the sum of the first two terms.

The third partial sum,

is the sum of the first three terms. Since

is the sum of the first two terms,

can be found by adding

and the third term.

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