- #1

- 670

- 3

## Homework Statement

Calculate the following sum:

[tex]\sum_{k=1}^{10} 3 \cdot 2^{k}[/tex]

## The Attempt at a Solution

[tex]\sum_{k=1}^{10} 3 \cdot 2^{k} = 3 \cdot \sum_{k=1}^{10} 2^{k} = 3 \cdot (2^{10} - 1)[/tex]

Although it seems that I am missing something.