The Cardinality of this set {7,8,9) includes a. n(P) = 3 b. n(P) = 6 c. n(P) = 24 d. n(P) = 2

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asked Apr 18, 2022 162k views

2 Answers

Jodonnell · Answer 1 · 2022-04-21T11:59:24+0000

Answer:

The Cardinality of this set {7,8,9} is n(P) = 8.

Explanation:

Because:

n(P) = {{}, {7}, {8}, {9}, {7, 8}, {8, 9}, {7, 9}, {7, 8, 9}}

Hence by the formula 2^k.

where, k = number of elements in the set.

The cardinality is 8.