Question

If a={1,2,3,4,5}, then the number of proper subsets of a is

Answer 1

Answer: 31 proper subsets.

Step-by-step explanation:

Proper subsets can be calculated by

${2}^{n} - 1$

where n is the number of elements in the given set.

Here n = 5

➞ ${2}^{5} - 1$

= 32 - 1

= 31

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Answer 2

Step-by-step explanation:

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