Precalculus Examples

$A = (1, 2, 3, 4)$

Step 1

The power set of a set $S$ is the set of all subsets of $S$ . The first subset will be set $S$ itself. Next, find all subsets that contain one less element (in this case $3$ elements). Continue with this process until finding all subsets including the empty set.

Power Set = ${{1, 2, 3, 4}, {1, 2, 3}, {1, 2, 4}, {1, 3, 4}, {2, 3, 4}, {1, 2}, {1, 3}, {1, 4}, {2, 3}, {2, 4}, {3, 4}, {1}, {2}, {3}, {4}, {}}$

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