Sequences and Summation Notation

Find the sum:  90 + 84 + 78 + ... + 24

• 276

• 627

• 684

• 741

Find the sum:  2 + 6 + 18 + 54 + ….for the first 14 terms

• 4,782,968

• 1,594,323

• 2,391,484

• 13

• 11

• 10

• 12

Determine the sum of the series written in Sigma Notation. 

• -65104

• -71570

• -73483

• -22003

It is a sum of a sequence according to rule.

• Sequence

• Series

• Sigma Notation

• Sequencing

Which of the following expressions correspond to the summation in the illustration?

• 
• 
• 
• 

What is the sum of the first 30 terms of 2 -2 + 2 -2 +2 -2, ... ?

• 60

• 2

• -2

• 0

This is a convenient and simple form of shorthand used to give a concise expression for a sum of the values of a variable.

• Sequence

• Series

• Sigma Notation

• Sequencing

Find a₈ in the geometric sequence 4, 8, 16, 32, ...

• 1024

• 512

• 256

• 2048

Evaluate the sum.

• 60

• 21

• 6

• 90