Question

Which of the following is subset of set {1,2,3,4}

Answer 1

There are 16 of them: {}, {1}, {2}, {3}, {4}, {1, 2}, {1, 3}, {1, 4}, {2, 3}, {2, 4}, {3, 4}, {1, 2, 3}, {1, 2, 4}, {1, 3, 4}, {2, 3, 4}, {1, 2, 3, 4}.

Answer 2

Subset of A = { }, {1},{2},{3},{4},{1,2},{1,3},{1,4},{2,3},{2,4},{3,4},{1,2,3},{1,3,4},{1,2,4},{2,3,4},{1,2,3,4}.

Step-by-step explanation:

• Let A and B be two sets. If every element of A is also an element of B, then A is called a subset of B. we write A ⊆ B

• A ⊆ B is read as "A is a subset of B".

• If A is a subset of B, then n(A) ≤ n(B).
• The subset usually starts with a null set and their subdivision of given set as follows.
• Let A = { 1,2,3,4}
• Therefore the subset of A = { }, {1},{2},{3},{4},{1,2},{1,3},{1,4},{2,3},{2,4},{3,4},{1,2,3},{1,3,4},{1,2,4},{2,3,4},{1,2,3,4}.