Express the sum using summation notation. Use 1 as the lower limit of summation and i for the index of summation.
-$$3 + 6 + 9 + \ldots + 27$$
A) $\sum _ { i = 1 } ^ { 9 } 3 i ^ { 2 }$
B) $\sum _ { i = 0 } ^ { 9 } 3 i$
C) $\sum _ { i = 1 } ^ { 9 } 3 i$
D) $\sum _ { i = 1 } ^ { 9 } i ^ { 2 }$

Question

Quizplus · Accepted Answer

The sequence is an arithmetic sequence with a common difference of 3, starting from 3. The general term of the sequence can be represented as $3i$, where $i$ starts from 1 and goes up to 9 to reach the last term, 27.

Express the Sum Using Summation Notation 3+6+9+…+273 + 6 + 9 + \ldots + 273+6+9+…+27

Express the Sum Using Summation Notation $3 + 6 + 9 + \ldots + 27$