Question

number of subsets for A = (1234) is​

Answer 1

Answer:

In all, the set A={1,2,3,4} has 16 subsets.

Answer 2

Step-by-step explanation:

The given set is A = {1, 2, 3, 4}.

Here n(A) = 4.

We know that if a set has n number has elements, then it has 2ⁿ number of subsets.

∴ the number of subsets for A is 2⁴ = 16

Final answer:

The number of subsets for A = {1, 2, 3, 4} is 16.

Extra:

The subsets of A = {1, 2, 3, 4} are

{ }, {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}

We must know that, null set { } and the set itself are the subsets of any set.