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Q. 1.

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Found in: Page 868

### Precalculus Enhanced with Graphing Utilities

Book edition 6th
Author(s) Sullivan
Pages 1200 pages
ISBN 9780321795465

# Write down all the subsets of the set { Dave, Joanne, Erica }.

All the subsets of the set-

$\left\{\varnothing \right\}$

$\left\{Dave\right\},\left\{Joanne\right\},\left\{Erica\right\}\phantom{\rule{0ex}{0ex}}\left\{Dave,Joanne\right\},\left\{Joanne,Erica\right\},\left\{Erica,Dave\right\}\phantom{\rule{0ex}{0ex}}\left\{Dave,Joanne,Erica\right\}$
See the step by step solution

## Step 1. Given information.

The set is given $\left\{Dave,Joanne,Erica\right\}.$

## Step 2. Write down the subset.

To write down the step first write subsets with no elements, then those with one element, then those with two elements and finally with three elements.

$0$ Elements - $\left\{\varnothing \right\}$

$1$ Elements - $\left\{Dave\right\},\left\{Joanne\right\},\left\{Erica\right\}.$

$2$ Elements - role="math" localid="1647244496274" $\left\{Dave,Joanne\right\},\left\{Joanne,Erica\right\},\left\{Erica,Dave\right\}.$

$3$ Elements - $\left\{Dave,Joanne,Erica\right\}.$