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2 years ago

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How many subsets of at least one element does a set of seven elements have?

1 answer:

Tomtit [17]2 years ago

3 0

$\boxed{\large{\bold{\blue{ANSWER~:) }}}}$

For each subset it can either contain or not contain an element. For each element, there are 2 possibilities. Multiplying these together we get 27 or 128 subsets. For generalisation the total number of subsets of a set containing n elements is 2 to the power n.

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